UVC Lights Real or Fake? Sterilization + Sanitation Measure and Review
HTML-код
- Опубликовано: 13 июн 2020
- -Skip to 20:00 for final results of this test
-Strong UVC Tube Light 120v (my favorite!): amzn.to/33wH4kM
-Safety Glasses UVC (tested, they work!): amzn.to/2UDe1a0
UVC Meter: amzn.to/3hsyacv
UVC Meter2: amzn.to/2Xlb2V8
UVC Meter3: amzn.to/3i31OVx
-Monos Wand 7 watt: amzn.to/39WURm0
-360 degree 60watt UVC bulb: amzn.to/3htiJki
-Two use UVC Flood Light(careful, only use with no humans or pets near): amzn.to/2XZsZJy
-Phone, key, jewelry, small-item box: amzn.to/3hr93XK
-UVC tube wand, AAA batteries: amzn.to/39ZU4Az
-Mini wand: pulled from Amazon. Not sure why. It actually does create UVC.
-Good price on Masks:amzn.to/3jDrREp
LED lamp bag: amzn.to/3hSMFWy
Portable edit station: amzn.to/2XsyzmY
Mic: amzn.to/3kbNwUl
Tripod: amzn.to/33s6PCH
Filmed on a GoPro: amzn.to/2Y0SonX
Filmed with Mavic 2 Pro Drone: amzn.to/2Y1W3ld
Phone Holder: amzn.to/2XsyzmY
/ @violiteuv8980
uvc,sanitation,sterilization,virus,coronoa,corona virus,covid,covid19,covid 19,lamp,test,review,fixitwithjake,led,testing,sciene,clean,does it work,measurement,measure,bacteria,kill,ozone,wand,cleaner,disinfect,black light,hand sanitation,germicidal,hospital,cleaning,hepa,phone,phone soap,monos,uvc light,uvc led,tester,uvc box,sterilization box,covid-19,corona
As an Amazon Associate, I earn from qualifying purchases. But it will cost you nothing different. 
Хобби
great job, you have answered my concern and the concerns of many other people who do not want to be duped by Chinese fake products!!!!!!
This is a great vid for people who are wondering which of the lights on the market that are worth buying and effective. This helps me to buy exactly what I need and not waste money on something that turns out bogus. Thank you so much! God bless!
Thank you Amor. Glad you enjoyed it. Still working on a follow up for on dosage so we all know how long we need to use the light depending on the lights output.
Dear Jake, although well meaning, there may be several inaccuracies in your video. And these are mainly related to your sensor. UVC meters are usually calibrated to 254nm mercury emission spectra, which is UVC. However, the sensor is activated by a very large range of wavelengths all the way upto visible light. Which explains the reading when you used the white light led bulb, which was not UVC at all. . If you wish to measure other wavelengths, you need to get your device calibrated to the wavelength being tested. Ideally you need a spectrometer capable of reading 200nm to 400nm, to really clarify which wavelengths are emitting how much energy. The germ killing power of UVC peaks at 265nm and sharply drops off at other wavelengths all the way down to 320nm. At 320nm, the effect is maybe 2-3% that of 265nm. However 90% of the LED products available are just toys, that give you a fake sense of assurance. Their power is too low, and over a very small localised area. Moreover, their LEDs intensity can drop rapidly to even 50% as the LED gets hot as these LED toys have almost no heatsink.
I think you’re confused, it was supposed to not be out putting UVC when you operate just a white LED bulb. But due to the design and manufacturing of that particular product it runs the UVC LEDs and the white LEDs all at the same time which is a safety concern. The meter was not picking up UVC rays out of nowhere. They were picking it up because the product was keeping the UVC LEDs ON when it should not have. There’s nothing wrong with this particular meter, it has been calibrated and tested and there was a calibration card in the case from the manufacture.
@@fixitwithjakeI think Vineet wanted to say that your meter is triggered by a much wider wave length than the range effective for killing of Bacteria & Viruses (or inaktivating theire DNA). This means not only the ammount of energy is important for the effectivity, but also the exact wave length immited. I think depending on the wave length you will need higher or lower energy to deaktivate the DNA. So if you have the possibility to measure the exact wave length of the LEDs than your video would be even greater that it already is :)
@@fixitwithjake you misunderstand how this sensor works and what calibration means in this context. Being calibrated for UV-C means it will show correct readings if (and only if!) you shine only the wavelength it is calibrated for at the sensor! If you shine other wavelengths at it, they will still excite the sensor, just not show a correct energy reading. To correctly use this sensor with products of which you do not know the light spectrum that is output, you would shave to place a band-pass filter on top of it that blocks out all non-uvc wavelengths. Without such a filter, you can shine a light that contains no uvc at all at it and it might still give you a positive reading.
Extremely informative; truly appreciate the in-depth, unbiased details shared! Helped in understanding how to purchase such a device, thank you
Thank you SASter, happy it helped you.
Great video. Been looking for this for a long time.
use the uvc lights without ozone which has a wave length of 253.7 nm. The uvc lights that produce ozone has a wave length of 185 nm. Germicidal action is 100% at wave length of 265 nm. At 254 nm, is roughly at 85% of the peak value. So the cdc recommended dose to disable a particular virus must be then adjusted by 15% as these values are given at peak values at 265nm. At wavelength below 235 nm, the germicidal action is not specified and is usually very low. So at 185nm wavelength the actual effective germicidal action is probably closer to 5% and therefore should not be used at all. Now these bulbs are 185nm also produce ozone and that is effective in disinfection but unfortunately we don’t have much guidance on how much ozone needed and for how long exposure is needed to disable the virus. So again all calculations and uvc density levels are all based on 265nm for 100% peak value and at 254 nm commercially available lights you are getting 85% germicidal effectiveness which is still pretty decent. Please use only the uvc light that has no ozone which has a wavelength of 253.7nm….. one final comment most meters sold like the one you are using to measure irradiation density are calibrated to measure uvc at 254nm, and so the values you are measuring is not accurate, unless the light has 254nm wavelength. I built similar disinfection boxes to yours and used the same light fixture you are using but I replaced the uvc bulbs and went to reputable manufacturers such Phillips or OSRAM or USHIO where I am guaranteed what light I am getting and confirmed they are producing 253.7 nm wavelength with certification and also most has actual test data available for various sizes and wattage for irradiation density at 1 M distance, so you could design your box effectively on paper using reliable date from the light bulb manufacturer then use the uvc meter to confirm the final box design. I just can’t trust nameless bulbs sold on Amazon without any data or certification. Hope this helps. Mark
Awesome Job Jake!!!!
Thanks showing how effective the glasses are. Remember to tell people to cover their skin on their face too. Perhaps a full face shield.
In case people want to understand kill times and effectiveness of these devices....
dosages to kill 99.999% of MRSA you need 50mJoules/cm2. Joules are Watts times seconds of exposure. so to get Joules you multiply watts times seconds. So 50 mJ = 50 mWattseconds. However, your sensor measures MICRO watts. you need 1000 microwatts for 1 milliwatt. here is a list of time needed for each of your lights to kill MRSA (50mJ) or c.Diff. (100mJ) two common hospital bacteria (most viruses and bacteria are at or below the dosage needed for these two so they are used by most companies as references)
#1 black wand at about 100microwatts x 10 to get to 1 milliwatt x 50 or 100 to get to 50-100mW= 500-1000 seconds or 8-16 minutes at 1 inch distance (remember how much weaker all lights got at 6-15 inches)
#2 white wand (smooth) at 50microwatts x 20 to get to 1 milliwatt x50-100 to get to 50-100 mW = 1000-2000 seconds or 16-32 minutes
#3 micro white wand at 20 microwatts x50 x50-100 = 2500-5000 seconds or 41-82 minutes
#4 white fluorescent w/ safety switch 160microwatts x 6.25 to get to 1 mW x50-100 = 312-625seconds or 5-11 minutes
#5 (the favorite) T5 - 6W bulb (BUT WITH OZONE which can be dangerous and needs a different sensor) 3000microwatts or 3 milliwatts meaning about 16-33seconds total time to get to 50-100mJ
#6 LED round about 20 microwatts (See #3)
#7 LED 3 blades (just not safe so don't get it)
#8 phone box 50 microwatts (see #2) however, the white walls should reflect light around if it is the brand "Phone Soap" from the shark tank people.
When it comes to LED vs. fluorescent, LED is always weaker and the spectrum is not the 254nm which has been most researched and effective.
any questions feel free to contact me at VioliteUVC.com.
Can't wait for the follow ups!!
You're so professional! Great!!!
Would using multiple lamps of #3 decrease the time it takes to kill bacteria?
This is amazingly helpful and where I was getting stuck for the video 2. If life to share your info and link to your site if you don’t mind Violite
Thank you for this great info and violate thank you also!
Its crazy I see wands that claim you just wave for 30 seconds - but now I’m seeing 8+ minutes.
Could you please point us to a product that would be good for personal use for disinfecting masks, groceries and other stuff?
This is life saving information!
Momentary exposure to any of these lamps will not harm your skin. UVC is blocked by the first layer of dead skin, and very little actually makes it to the next layer, much less the live cells several layers deep. Your eyes are the vulnerable spot, but only the strongest lamp in this video (the tube in the box at the end) is even CLOSE to being a danger (as long as you don't stare at them like a doofus, anyway).
Slightly longer exposure (more than a few seconds) to stronger UVC (like the tube lamp) can leave you with a feeling like a flash burn from welding. It's uncomfortable, but not likely to have any lasting effects. Industrial and medical strength lamps are _much_ stronger, and have more lasting effects, so Stay Away should you ever encounter one.
To check if your sensor only detects uvc or also uvb and uva you can slide a piece of pyrex glass (borosilicate glass) in between the sensor and the leds. Uvb and uva will penetrate the glass but uvc will be blocked. If there is no uvc the reading on your sensor won't change with glass in between
Great work Jake! Please keep going, learning a lot. Thank you!
Thank you Dave
great great review it's an eye opener some manufacturers are very misleading and as a result can cause great harm.
Thank you for this video! So informative! I went with your favorite item to use at the office with a timer.
Great! Don't let the light touch your skin or eyes! Cheers
Which one was your favorite?
Couldn't watch the whole video
@@fixitwithjake I got protective eyewear, too. That tube produces a LOT of ozone! It’s ideal for a box that you can fill with items to disinfect that can’t be easily washed. Tubes are definitely the way to go for maximum efficiency.
Very methodical. Thank you 😊
thank you, we need this kind of information, please keep going further, in all the possible types of uv lamps on the market, make more videos about it, thank you very much your video helped me avoid buying one of these ineffective Chinese lamps, a greeting from another continent im wating for the new video
Thank you David. Still working on a follow up video for dosage. The math is tough for me so looking for some help from others.
hi, we've spent a lot of time and money testing UVC products. We've made the world's strongest handheld uvc device the Photon Pack. etherclean.com let us know if you have any questions!
@@allether5377 for those prices, I'll go with making a cabinet using the UV-C tube, which can vent the ozone outside.
@@fixitwithjake hey sir, from the studies i've seen covid is inactivated with 10-20 milliJules of energy per centimetre square. Jules are wattage measurement but with time.
So 1 mJ=1mW per second. Our Sun gets about 6 microwatts of UVC down to the ground on Earth, so we need enough time to get 6microwatts to 10 milliwatts. 10000/6 = 1667 seconds or 27 minutes.
Thank you so much . Amazing help!
It makes me happy that it helped you
Thank you soo much for this video! 👍🏽
Hey Jake, Thanku for the solid video!!
Any particular wand you would suggest for travel etc?
The folding wand looked like it works well but is it powerful enough to disinfect? And will it take a crazy amount of time bla bla?
Also- are you going to still make the part 2 of this video? 👍🏼
Thank you Myles. I am still working on part two. I am not great at the complex math so waiting on some help for dosage. I am hesitant to recommend anything until I see can the dosage number for you! This stuff can really affect our health and lives so I dont want to mis represent in anyway....
Alieexpress sells a small 5w blue aluminum real uv-c mercury quartz type bulb, nicr portable & I confirmed it works great, it has a delay to start so u turn on & walk away & it turns off in 15mins so you give anoyher 15mins for o3 to stabilize before returning to the area, theyre about $20 but aboit month wait
I like that the big tube actually worked.
jake could you do a video showing how to create a light box to put groceries inside? Is it safe to use cardboard?
Thanks for the tests. Am pretty curious for the ultimate results on the foldable fluorescent wand.
Thank you Portraito. Working on it!
I have it and I love it . Paid over $50 in Costa Rica but it worth 😍
@@fixitwithjake 1
Good job on demonstrating UVC output from various devices. Some manufacturers use 270nm wavelengths but with more power than the 265nm units which have shown optimal killing power. Knowing output power is good however, I respectfully suggest a more relevant test would be to measure the effectiveness on surfaces. You could measure pre and post radiated samples and look at the drop in rlu's from a luminometer (see Hygiena). Dwell time (time on target), and dwell time at a specific range would be very useful. Thanks for the vid- that took a lot of work and good chunk of change to purchase those devices. More please!
Hi Jake!
Do you happen to have info about the working/warmest temperatures of the tested T5 Strong UVC Tube?
Just want to be sure if building a sanitizer box, how close I can take certain materials and how long can those be exposed to that temperature?!
To mention eg. the following mix of "textile" materials:
Elasthan & SBR
Polyurethane & EVA & memory foam
PVC grip material
Also a question that if I put the tube pretty close .. like about 2-3 cm, how deep it can penetrate into a min. 1cm - max 2,5cm (same as mentioned) material?!
Would be greatful if you have any info or experiences about it.
Thank you (also for the great test content)!
Thank you!
jake!!! Excellent video!!! is the opto power meter is tuned to UVC wavelength? by measuring wavelength we can say whether its UVC or not.
Correct, this meter only measures UVC, nothing else
very helpful information, big thank you 🙏
I was thinking about going with one of these to actually kill mold in my AC unit that my apartment repair guy refused to clean properly. I was going to go with the LED wand but now that I've seen this video I think the only one that'd be worth it is the tube light that you recommend. It looks like it should be able to fit into the opening of the AC.
Oh and of course killing the virus is an added bonus. Might try a sanitizing box.
Do not use that strong tube in Jake's video for a central air system. That lamp produces ozone and will harm your eyes and lungs. Be sure to get one that is NOT ozone producing for any air handling system. Feel free to contact me for options and system set up.
VioliteNJ@gmail.com
How about a video about far UVC lamps? Also did you check a reading on regular fluorescent lamps as a comparison ?
great video great job!!!!
Would have liked to have seen more baseline information and more information on the detector (although I can probably look up the specs on the detector myself).
Baseline should have included some exposure tests of everyday LED and flourescent lighting and by all means should have included direct sunlight!
Still good and interesting videos.
Maybe do an update to include everyday light sources.
It would be really interesting and actually potentially useful to know how sunlight registers under the same tests.
Good point about showing what the effect of sunlight is.
if you are watching this because of covid, it seems like most literature points to 254-285nm. also 165-185nm is in the ozone-creating range, which comes with its own safety problems.
Hi Jack, very useful information, I have a suggestion, how about covering the inside lid from phone sterilizer with aluminum foil for increasing the power of UVC lights powers for smartphone glass! can you test it too? Thanks
Thank you 👍
Welcome!
Thank you for the informative video. I want to purchase a wand type light that I can use to disinfect my reuseable masks with as well as some surfaces in my home and car. How well do you trust the protective glasses that you show in the video?
The glasses are name brand and have been tested. I trust them.
Thank you, please make a video about what materials the uvc cannot penetrate
Pretty much all plastic, cardboard, anything that blocks light Davy. I found it to be blocked very very easily. But good question. I should check a few more materials such as glass and other transparent and opaque materials that we look through.
UVC is not able to penetrate any solid objects and most glass and plastic glass like acrylics. UVA and UVB have been shown to wear down the color of white pvc and other plastics, rubber, and acrylics as well as moat inks in photos and art work not under glass and so it is assumed UVC does also.
How much micro watts/per cm is enough for how long to sterilise against viruses?
Thank you
👍
‘Don’t look directly at the streams” “I looked at the stream Ray”.
Just b/c I have an unlicenced nuclear accelerator on my back?
*the trap
Also, explain the MW/CMS: there was a variantion from70-80 for our UVC device others you showed had much less in the single digits.
Can anybody see these?
You should add a control... like with a black light (non led).
Great info.. real. Thanks
Has anyone identified the black wand? Can they link me to a purchase link or just provide the brand/model? Thanks!
It should be noted that even fine dust coatings and fluids can keep UVC lamps from destroying the organisms, so they aren't effective in all cases nor on all surfaces.
They work where the light hits.
If the surface is dust then it'll work.... in the dust kkkkkk
hey can you just say me about your next test that if it has killed virus bactria or not? just yes or no? i am Going to give a order tomorrow
Hi bro, thx for video, please could test the XIAOMI FIVE?..thx
Is the uv light to cure loca glue ( smartphone tempered glass) is uvc? Can it disinfect?
Is the first black wand good enough or no ?? The mercury arc tube by ‘ cool spider’, 3000 measuring seemed too high. In general what Is the proper dosage needed ?
Please make second video!! on effectiveness.. I already blew money in UVC wands before seeing this vid🤦♂️😑
You live and learn. You’re here now.
I think with the UV sterilizing wand I got from Amazon may work, I'll stick with it. Thanks for the info to wear gloves and glasses. Wear did you get your glasses?
I put a link to the glasses that I tested and confirmed in the video description above :) or here amzn.to/2UDe1a0
I can not locate the second video. Please send
Me a link.
Nice Lx!
👍
Hi, who cant conduct testing like you're doing? I bought online UVC Fourescent lamp, and i dont know if its true or fake. Who is the best person to test it? Thanks for your video, i bought 3 from China.
How did you keep your rest of your body and face from getting burned?
Jake , i want to buy the uv black stick to use traveling at the hotel , is it good enough , or you have suggestion , thank you🙏
I'd recommend against it.....I'd suggest the big 120v one with glasses and gloves or a box of clorox wipes
Jake give me some benchmarks: The Black Lamp we are selling says it produces 260-280nm and we were informed that the purple light is an indicator that the uvc is faulty? We also were informed that the UVC tube glasses were more reliable that the square golden lLEDs?
I would not say that the purple light is an indicator that it is faulty, I would just compare the purple light against other bulbs to see which ones are out putting UV see versus which ones are just purple bulbs. If your entire light is all purple bulbs and there’s not a gold ring around the LED there’s a good chance the entire item is fake. At least that was my experience in these test. Second I would not trust the manufacturer’s paperwork. See if you can compare the look of the LEDs that I post against what yours looks like. I would have to agree The fluorescent style glass tubes are more powerful outputting UVC than any of the LEDs I have tested. As far as reliability I would disagree. I think that the LEDs are far more reliable than the fluorescent tubes. The fluorescent tubes even if they are not UVc burn out much quicker than LEDs. But then again maybe we are talking about different reliability maybe you’re talking about how reliable it outputs UVC
I would not say that the purple light is an indicator that it is faulty, I would just compare the purple light against other bulbs to see which ones are out putting UV see versus which ones are just purple bulbs. If your entire light is all purple bulbs and there’s not a gold ring around the LED there’s a good chance the entire item is fake. At least that was my experience in these test. Second I would not trust the manufacturer’s paperwork. See if you can compare the look of the LEDs that I post against what yours looks like. I would have to agree The fluorescent style glass tubes are more powerful outputting UVC than any of the LEDs I have tested. As far as reliability I would disagree. I think that the LEDs are far more reliable than the fluorescent tubes. The fluorescent tubes even if they are not UVc burn out much quicker than LEDs. But then again maybe we are talking about different reliability maybe you’re talking about how reliable it outputs UVC
Great video! Informative! I just bought the Zagg Uv-C sanitizer for my phone and other items at home. Will that uv-c damage my phone screen or simply affect it in any way?
No, it will not hurt your phone. I use it all the time on an Iphone 11. It is damaging to living organisms and your skin though.
There are versions of the florescent bulbs that do not produce ozone. Much safer to use indoors.
Thanks for the glasses recommendation.
May i know where to buy it? UVC without ozone?
Twinkie Girl if you buy a UVC led then it won't produce ozone. But keep in mind that you would need multiple leds to sanitize a surface. Exposure time should be around 5 minutes, bc these LEDs are pretty low powered. On the other hand, a UVC bulb will be much stronger, so just know never look at the bulb, and don't let it touch your skin
thanks so much for this! Seems isopropanol is so much more convenient.
what are you wearing Jake from statefarm? 🤘😷
11:36 with an shiny aluminium reflector you could almost double the output, UVC can be reflected from aluminium surfaces. I don't understand why those (fake) UVC LED lights are so much promoted on Ebay, the quartz tubes along with a T5 lamp cost 10€ and the output can't get much better if one doesn't want to use high pressure quartz lights.
Sir what is the brand of your dosimeter device and where to buy like this. Thanks
Al Urbina The brand is called the brand is called GENERAL. They are pretty expensive I think I paid $500 for it. I was just search they are pretty expensive I think I paid $500 for it. I would just search general and UVC. You don’t want the UVA version.
Thanks for your help, here we are doing a project on it.could you please some information about it, so that it will helps us🙏
I have a 36W UVC dual tube bulb running for decontamination, to estimate its power would I just take the results of the 6W tube and multiply the output to get an idea of its output or are their more factors in determining its power?
i added a reply to this video with time and dosages to kill common bacteria and viruses. Typically the UVC wattage of a bulb is 1/3 the total wattage so 36 watt bulbs have about 12 watts UVC. however, the irradiance is how much UVC energy covers an area (usually measured in cm squared) but that area spreads the further away you get as Jake showed. Also, the brand bulb makes a difference. All legit bulbs are being required to inform you of the irradiance at different distances. if you can find that info online, then reference my math in my comment to this video, that should help you out. if you need more help, contact me at VioliteUVC.com
@@violiteuv8980 I appreciate the info! Especially from someone in the industry. So my bulb is Chinese but based on the resonably strong ozone smell and that I can see small flecks of mercury it seems legit (Tepro CHU36L) the website says it outputs 120 μw/cm² Im having a little trouble understanding the math in your other post to get a good estimation on the amount of time till full decontamination. I have it running by my door whenever I open it and Im already seeing a minor sunburn after around a minute and a half of total exposure, but cancer at 40 is better than covid today
I tried to cross reference this study of SARS-Cov-1 to get an idea of total time needed for a room about 11'x15' and my math came up at about 3 minutes total, what do you think?
www.ncbi.nlm.nih.gov/pmc/articles/PMC7112912/
@@dood444
This was a good article to compare different disinfection tools. It is from 2004 but the methods are still reasonable and valid. The UVC light they used achieved COMPLETE disinfection by 15 minutes at 3cm distance which is about 1.5 inches away. However, COMPLETE disinfection means a >6LOG kill or 99.9999+%. Effective in practical terms would be 4-5LOG or 99.999% and should have taken their lamp about 1-2 minutes max. Their lamp output was about 2000 microwatts where as yours is 120. So you need almost 20 times the time at the same distance. However we don't know the distance your lamp produces that 120. Theirs is 2000 at 3cm.
Let's make up figures for yours so you see the math. If you get 120 at 1 foot and to kill a SARS virus let's say you need 50milliJoules which is 50milliwatt-seconds. The math is 120microwats per second to get to 50 milliwatt-seconds. 1000micro in 1 milli so you would need about 500 seconds at 1 foot or about 8 minutes. At 11 feet you are no longer producing 120microwatts. The inverse square rule applies. So you have to divide 120 by 11squared which is 121. Therefore you produce about 1microwatt at 11 feet if you make 120 at 1 foot. At 1microwatt and 11 feet it would take you about 50,000 seconds to get disinfection which is about 833 minutes or almost 14 hours. And no radiation at all in any areas that are in shadows like behind a chair or under a table. Sorry. Not very effective or efficient.
Ozone is a different beast however. It is very Effective, gets around corners and behind objects but you need a fan to push it around. And you also need about 2 times the dosage time afterwards to allow ozone to revert back to oxygen so as not to irritate your eyes and lungs. But it will make a room sanitized and smell nice after that. As for ozone kill times, if you can get to about 3-5 times the EPA safe levels, disinfection will be instant. However you have to measure the room for even distribution and that's hard when you can't be in the room. We do that treatment too but there are a lot of reasons you have to avoid so we don't do it as often as UVC.
Hope this all helps.
If you would like more info email me at VioliteNJ@gmail.com
P.S. cancer at 40 still sucks so cover up!!!
dood444 Great Article. Thanks for Sharing Such, So Much!
So which one is good?
Awesome I’m trying to sucker punch the germs on my plant tissue cups before growing them :3
Sounds like a good use of UVc
Jake, thanks for the video. I was looking forward to your follow up. I actually did buy one of these. From Mashable. I thought it was legit because of where it was sold from. Ended up being from China and I'm still not sure if it works the way they claim. It's the second one from the left in the opening photo you used. Very curious what the results were on that one. Thanks for the experiment and posting!
Hi Mark if it is the second one from the left the white looking one it does have a few real UVC LEDs in it, the other ones are not outputting Uvc as I showed him the test. It seem to have a really nice form factor and has usb c charging and was the nicest looking of the group.
superb... good
Thanks!
Regarding the COOSPIDER U/V/C Light Lamp 185nm with 253.7nm Bulb 5ft Cord and Plug 110V (6W Ozone Lamp) , any reason you wouldn't go with the higher wattage COOSPIDER UV Light Bulb, 36 Watts (E26 110V CTUV-36 with Ozone)? Or the cheaper G6 Wellness UVC CFL 25W?
BTW, I understand UV LEDs are more powerful than UV CFL Lamps, yet most of the UVC products use CFL not LEDs..
I'm looking for a powerful germacide UVC LED to use for sterilizing/disinfecting. No settings/timer, just plug it in. I'm looking for the shorter wavelength (higher frequency) side of the spectrum.. i.e. UV-C (180-280nm).. not UVB (280-315nm) or UVA (315-400nm).
At first I was thinking of using one of those nail polish curing devices.. like the 320W SUN X21 (72 Leds) but they only come in 365-405nm.
What material can uvc wavelength pass through?
Your videos are excellent and informative. Have you considered making 1 where you test air purifiers that have a UV-C bulb installed?
That is a good idea. I have not thought of that. Would be tricky to figure out how to test that scientifically for someone small such as myself. You'd probably need a lab.
Hi, your video is very informative. Can i share link or embed your video link on my webpage?
Sure go for it!
WoW! Thank you SO Much for Doing this.
I just bought a Tzumi PhoneSpa UV Wand from Walmart yesterday and was wondering if it was a gimmick or the real deal. I find the device comparable to the little fold out device you tested that has the “No Shine Upwards” Security feature. It ranked 2nd Best in this test, so Not too shabby. I’m looking forward upon viewing your next video on the subject. Thanks Again!
I was going to pick one up from Walmart tomorrow lol. Are you liking it?
And your next video with these lights you should do a control with a regular blacklight.
I should be able to cobble something together that would indicate UVC for less than $20 or so. It would rely on the fact that UVA and UVB are 1000's of times less effective than UVC at erasing an UV EPROM (which occurs with exposure to light that is less than 400nm wavelength). One might also make a crude UVC detector using printed circuit board photo resist. That too would look at exposure time and intensity to infer UVC from UVA and UVB components. In other words, what would take a few minutes using a given intensity UVC source, could take hours at UVA and B wavelengths.
It's interesting that different sources define different wavelengths for the UV-A,B,C components. I'll go with Stanford University's:
UV-A light (320-400nm) is UV light with the longest wavelength, and the least harmful (Stanford)
UV-C light (100-290nm) can be extremely harmful (Stanford)
You should try the tests with the PhoneSoap 3 and the PhoneSoap Pro. Those are the most popular phone/small electronics uvc desinfectants in the market using small, low-pressure Hg vapor arc lamps at 254 nm peak emission (1 lamp on top and 1 on bottom of the case) with the internal surface being completely reflective. Looks like an interesting design but there are literally zero tests like yours on the internet, so I imagine you'll get tons of views if you make such video!
There are videos testing it's germicidal abilities with just agar plates for common bacteria like E coli, etc but nothing for viruses or deadlier bacteria or parasites. So, taking your UVGI values (W/cm²) from your tests, and looking at research papers showing UVGI doses for particular bugs, people can make an informed purchase
When you use it uvc ozon lamp in room 30min how long you wait to enter room and open windows, how long you keep open windows ventilation?
I’m afraid I can’t give you a safe and scientific answer. Personally I just use my nose and if I smell ozone then I give it more time.
Thanks mate, how safe is using UV lights for vegetables
I’ve read many studies and watched many scientific videos and UV see does not affect what you eat. Mini large grocery chain such as Whole Foods, Amazon and a few other places are actually using these at night to go up and down the isles and clean your products so they are safe the next day.
Https://ruclips.net/video/v9qAXIPzQXI/видео.html
Real test on raw fruit and veggies
Great video! I recently did a similar video using a bunch of bananas to test them.
I will check it out, it is great that these lights are getting some attraction and attention for the right reasons
I read that activated charcoal can neutralize (catalyze) Ozone.
Is the flood light outputting far uv light? That's safe
Great comparison and thanks for sharing. Would like to point that the powerful great and inexpensive uvc lamp you tried where you warned of ozone in fact does not produce ozone, no UVC lamp ever produced ozone, only vacuum uv produces ozone, altogether different wavelength!!!!
I'm pretty sure it produces ozone. You can smell it really well. And there are warning labels all over the package that it produces ozone. en.wikipedia.org/wiki/Germicidal_lamp
@@fixitwithjake if so, then it definitely is not uvc, meaning its not a 254 nm uv lamp, chick the wave length on its more likely below 200 nm.
www.uvresources.com/blog/the-ultraviolet-germicidal-irradiation-uv-c-wavelength/
Alas, as of Aug 4, 2020 unavailable on Amazon and don't know when they will have it back.
Ok i'll review links and updates options for you guys today
Nice
Hey man, your light meter is uva & ucb right? It doesnt measure ucv i think. Or I suggest u need make a video to tell me your light meter
Desca, this is the the Calibrated meter I used: amzn.to/3wZB7rK
This instrument is designed to measure ultraviolet light in the range from 280 to 400 nanometers. The illumination range of the meter allows users to conduct the most precise quantitative measurements of ultraviolet radiation for radiometry and laboratory requirements, UV-curing in off-set printing, lamp UV intensity and aging, industrial process monitoring, semiconductor fabrication , sterilization and environmental monitoring.
GENERAL TOOLS - THE PRECISE TOOL FOR DOING THE JOB EXACTLY RIGHT. Offering over 1,000 tools, we’re proud to provide tradesmen, craftsmen and DIYers around the world with a broad range of affordable, specific-purpose mechanical hand tools and precision measuring and inspection tools.
@@fixitwithjake well, thanks a lot man for the answer. And where can i get just a lamp coospider? This lamp from your video is the highest light indicator meter
There’s links in the video description to all the lights in the video.
Thanks for the great video ☺️ Love the U.V. meter you used too. Good stuff ☺️
So what you’re saying is... I want something that’s around a consistent minimum of 1000 uW/cm2? Right?
I’m good with a USB version that I can plug into a USB wall adapter or a car plug while my car is running. I’m a taxi driver.
So long as the LEDs are legit UVC at 1000 uW/cm2
Has anybody found a non-made in China version that’s legit 1000 us/cm2 that can be plugged into a USB power source like a adapter? Cause I’ve been looking over 30 different devices so far and they are just as pathetic as these.
Hi Friend.. The UVC BOX Cell Fones sanitizer is Fake or Reality? My english no Good.🤦🏻♂️ Tks!!!
More VIDEOS Please
What kind of videos do you guys like? What topics are helpful?? :)
do tabletop sterilizers work?
By the end of this filming no one bacteria in this room survived.
Jokes aside, great contend. I'm jealous because I can't find one of those in my country.
You're funny! Check aliexpress!
I think the fact that it shows a reading even for regular white LEDs suggests the meter isn't useful at low doses. Because a regular LED could show as UVC.
I am not following you. The meter never read anything for regular white LEDs, it was always near zero until actual real UVC LEDs were operating or in the mix of the larger array of LEDs. Maybe you got that wrong. But let me know the time code that you were discussing. And I’ll figure it out for you. There was a bright LED Filming light during this video and you can see it’s reading zero before I put one of these ones anywhere near the center.
The reason you're seeing a reading when Jake puts the wand over the sensor is due to the bleed-over of the uvc LEDs into the white led path. If he put (e.g. Tape) over the UVC LEDs to eliminate that bleed-over they would register 0 uW/cm2.
@@ZacCato thanks for explaining that. It was hard for me to explain but I really do think it was a valid measurement and bled over.
Perhaps the light still produces slight uvc?
@@fixitwithjake Agreed, even the different wavelengths between UVC devices can show different readings.
So does the lights in the room have to be off while using a UVC light
No, it doesn’t matter on or off. It’s a different wave length then visible light.
@@fixitwithjake Thank You for answering my question so fast.. I called a friend & asked Him & he laughed at Me & so no also lol 😆 I'm Not That bright 🤦🏻♀️🤷🏻♀️😬
Welcome. No you’re fine. I had to think about it too for a minute before responding. Good question 👍
Those meters are prohibitively expensive...
*and can ALSO be counterfeited by various sources* as are far too many critical products on the internet (like lithium-ion batteries). The lesson is you have to be wary of any measuring devices used as well as the "UVC" lamps themselves.
This is a name brand meter from a name brand store. All paperwork and the case are branded properly and there is a hologram certificate inside.I have all the faith in this meter. The same can't be said for off brand meter www.generaltools.com/digital-tools/moisture-humidity-digital-tools/moisture-meters
What's the computer name to check for led lights to see if it's good
louie Rockefeller it is a meter/sensor and the brand is General and it measures only UVC
Can you tell me if UVC is harmful to look at through a window? I want to use it in A storefront where it can be seen by walkers by, but I will only do this if it doesn’t harm their vision.
it should not be able to go through glass but I would not take any chances
No any plastic or glass reverse the wavelength
@@ping_me1vp I really appreciate your response, however, I'd be using my 60w UVC lamp with ozone to disinfect a guitar store at night in a strip mall where people can just walk by the showroom window. It would probably be impolite to blind and burn them beyond recognition, so I'm hoping you might know where I can read these facts. Wiki just seems to talk about it's harmful effects, but doesn't talk about what stops wavelength. penetration.
Your Absolutely right, I also wanted to add as long as it isn't quartz glass, because quartz glass wull make wavelenght go through, & it is extremely bad idea to use ozone type uvc in that situation, actually I hope you understand that for example if you use tge light for 1hr than you cannot be in that place for another 1hr otherwose you'll be killing your dna rna because even none ozone will create ozone just not as strong tgat it can penetrate through walls, winc3 its a mall than 5hat means place has make up hvac units, just make sure to leave ypur ac on with fulll fan running
guitar if I were you I would buy multiple uvc bulbs that are not ozone producing and spread them around the store for proper disinfecting. If you are also really scared about the people you can just cove the glass up with some reflective film so the uvc will just bounce off. Also, one uvc bulb won’t disinfect a whole store unless it’s moving.
When will you have video 2 posted?
Soon I hope, it’s in the works. Sorry for the delay, our baby just came four weeks early in that top priority :)
part 2 is up
I used the second one directly on my skin for about 3 seconds on accident am I gonna get cancer?
Nah
after i feel like i wasted my damn money I'll just stick with bleach and alcohol lol
I don't know about accuracy of that meter, I have a meter and all fake uvc leds wpuld show 0 on all while real uv-c mercury filled quartz show a reading, I would probably focus on that sensor I believe those sentry testers came with few different options but lots or people gave a low score on that meter overall
WOW anG GANDAAA
#LYF
Can you test the samsung phone sanitizer
How much uvc do you need to kill viruses or bacteria
This is a very complex topic and is discussed in the video. Outside of what I discuss in the video would need to be measured and calculated.
Awesome video I stumbled across, I saw those bulbs and ordered 4 of them to build a “nuke box” for mycology purposes”. I have it out in the garage way away from anyone.. and it’s just honestly fantastic for an added way to sterilize certain things.
Thanks man
This is awesome. I am glad it was helpful!
Any glasses block UVC right?
It really varies. Some do and some don't. Some block UVb and UVa and not UVc. ruclips.net/video/DQDRj6dt2hY/видео.html