The UVLEN Scam is FINALLY DEBUNKED! - Krazy Ken's Tech Talk
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- Опубликовано: 15 окт 2024
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9 months later, the UVLEN tech scam can FINALLY be debunked! With science!
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Enjoy the grand finale! As always, there's more tech episodes to come. 🔔 Subscribe and stay tuned…
Nice video computer Clan! as always! 😁
Awesome ScamBusting episode!
Ken:
“maybe I’m not a real scientist”
Schrödinger:
“Imma put this dead cat in a box”
Pogg
Bro did they hold you hostage
Despite the fact we all know it's impossible for this too work it was still fun to watch.
Exactly. It’s the journey, not the destination. : )
@@ComputerClan exactly.
it is possible with upconversion, but with very low efficiency. So a white LED would not be enough.
@@adamrak7560 exactly the overdriven LED in a phone has absolutely no chance.
@@dogwalker666 It's like one of these crime shows/movies where you know who the murderer is, but the story is more about how the detective figures it out :D
If you weren't wearing a mask when the dishes were open, the gel was exposed your saliva in the air while talking, thus the "dots" of bacteria instead of the "swipes" made by the q-tip.
Huh. Good to know.
Thanks Professor.
Don't you know, mask don't make a difference?
(Yes, just kidding.)
❤️ on the cheap, leave vinegar for 10 mins then leave alcohol for 5 mins. All should be clean except for where your breath gives life.
That's certainly possible, people tend not to realize that police can pull your DNA from surfaces at the opposite end of a room which you spoke or breathed in with an open mouth.
UV-C light is neither visible with the naked eye, nor the camera. What you are using is an low pressure mercury-vapor lamp which besides outputting UV-C also outputs visible light (Violet, Blue, Green and Orange to be precise).
Fun fact, our beloved Fluorescent lamp is based on low pressure mercury-vapor. We use a florescent coating to convert the UV-C into regular white light, also we using regular glass which don't let UV-C through. A UV-C Lamp is just an florescent lamp without any coating and made with quartz glass.
Nice the deathray bulb. Great for bathroom mould
Low iron glass to allow UV to pass. Woods glass is what is used on mercury vapour based (400W edison fittings) UV bulbs as a filter.
Thank you.
The UVC tubes Bigclive (a very good electronics youtuber) used did emit a sort of pure, light blue glow.
@@JaSon-wc4pn Ah, there's an idea. I should get one of those lamps and nuke my kitchen with it. To eliminate any mold in the sink.
When you swabbed the objects, you should soak the swab tips in distilled water so that they have a better chance of picking stuff up and then smearing it onto the target surface. Also make sure the swab tips are sterile, and you're wearing a mask, and, of course, that you use a different swab for each test. Maybe do the swabbing under a fume hood if you have access to one.
Not that any of this is necessary because the test strip already completely debunks this sham product, as does, y'know, a basic understanding of optical physics.
the difference on camera is most likely due to the wavelengths the camera is picking up, where as the blue filter is just well a blue filter
I saw something the other day about that.. the eye doesn't just respond to r,g,b it sees harmonics as well (so violet, which isn't blue or red, slightly triggers our red and blue receptors which is why we can percieve it). A camera CCD is often just straight RGB so you get differences (unless the camera is expensive enough).
Indeed, I do astrophotography and actually have to remove filters from a DSLR to make it more sensitive to other wavelengths. They put UV and other filters in because otherwise you're going to pick up things like your infrared camera and introduce a red hue to everything.
Kelvin - That UV tube as most other CFL tubes have a higher kelivin around 5000k ,normal incandescent lamps are around 2600k and i guess the camera is set to indoor light White Balance. Thats why the camera hues the light from the uv tube. But yes Tony . :-)
Human color perception is also contextual - our brains will completely change how we perceive colors of light based on the other colors around them - Technology Connections explores some of this here: ruclips.net/video/wh4aWZRtTwU/видео.html
The UVC light is doing damage the the optic cells in your eyes. This is why the operating instructions say not to use the lights while anyone is in the room.
UVLEN: *doesn't send Ken the product so he can't scam bust*
One very nice viewer from south korea:*sends him anyway*
UVLEN: Shit!
mom: don't have any intercourse with family german shepherd ever again
me 1 week later: oops i did it again
@@uiopuiop3472 ???
@@CaelansStuff moral of the story: i had intercourse with the family german shepherd
@@uiopuiop3472 what does that have to do with the comment or the video???
@@CaelansStuff now that i think about it. nothing.
Anyone else thinking why they didn’t send one to ken?
Answer: they saw his scam busting episodes of him busting their product
Why not refund him then?
@@CJT3X why would they? They are already scamming people
@@CJT3X you think they’ll refund someone who wants to scam bust them!? I think not
Honestly I doubt it's just him who didn't get one. It's pretty common for scams to make a few hundred of a product, while collecting money for thousands they don't have. It more or less extends the life of the scam significantly. Why even make the product when people are just handing them money already?
Thinking the same thing
1 hour after this video goes up, Linus gets an eerily similar pro max headphone video. Can’t wait to see the coming comparison Ken!
We all knew how it was going to end, but we enjoyed seeing you get there.
A few considerations, if it was UV-C you'd immediately smell the ozone emitting from it, and your hand would smell like cooked pork when exposed to it (yep, UV-C cooks you lol)
And be safe with the UV-C lamp! It can quite literally fry your eyes. Wear some glasses with actual glass lenses to block it while using it.
Glass blocks very little UV emission without coatings. You want polycarbonate lenses to block UV.
@@overkill1340 that's correct for UV-A, it is not for UV-C, that is almost entirely blocked by standard glass. That's also why UV-C lamps aren't made of normal glass but of borosilicate glass. They would be completely useless otherwise
Can confirm the ozone.
My mum has this very old UV lamp from Cezchoslovakia, meant for disinfecting entire rooms (and extremely unsafe tanning. What can I say. the 1980s were more care-free) and a few seconds after it was turned on, the ozone smell was quite overpowering.
It was extremely effective for killing mold spores but you definitely don't wanna be in the room when it's on. For extra safety (in the 1990s and 2000s, we used automatic timers so it would turn on and off while we are not in the room.
Glass doesnt block UVC.
@@fsisrael9224 ...it does.
The company seems awfully interested in getting you to install their app - even hoping you'll go so far as to sideload it. Malware, maybe?
They probably had you sideload on Android (and use a generic app on iOS) because either they're too cheap to pay for a developer license or they didn't want to have their app taken off the app store (and have their company investigated as a result). Probably a combination of both.
@@SKCro. Fr💀
i have been waiting for this, for what feels like an eternity.
I'm in love with you
Well then you shouldn't have ordered it ?
it's been 9 months
@@aqua_whale yes it was a joke
Ken, you might not be a real scientist but we all know that you are trying your hardest and that's what counts.
Ideally for a test like that, you would use 3 petri dishes. Swab the target item once with a sterile swab dipped in distilled water, then swab 3 petri dishes at the same time. Then shine the UV lights _on the petri dishes_ That way you can swab all 3 from one sample, eliminating that variable, while also eliminating the variable of longer exposure that might have caused the increase in bacterial colonies in the UVLEN sample
I always chuckle when I see them bragging about "Fused Silica Amorphous"!
Glass....
That's just glass...
Love the fact you can see 8-Bit Guy's game in the background. David is such a nice guy and scarily smart.
I can't see how this would ever work lol. Using an APK not on play store is a bit dodgy as well.
Yeah for UV you can just get cards that measure. It should be like fluorescence.
Yeah! I picked it up from him at Vintage Computer Festival Midwest. His booth was right next to mine, so I saw him sell a lot! Dude's a genius.
Yeah the APK is very sketchy and TBH, utterly pointless, as one can just use the flashlight/torch function that most phones have easily accessible.
The play store has a rule forbidding misleading apps, so they probably got rejected!
Didn't he go into a supermarket with a rifle and laugh about a woman's kid being killed in a school shooting on video? I probably wouldn't call him nice personally
Still hoping to see if I can brush my teeth in 15 seconds with this revolutionary new toothbrush
you can it just doesn't do a great job.
What's missing from these tests... is a spectrographic measurement of what the phone's LED puts out (colours/frequency & intensity) vs what the 'filter' allows through.
Thats not nessasary. It blocks red and (most) green light. Otherwise, it just is a blue color filter.
i just want to say, this channel is so good, and i appreciate all the hard work you put into it, it really shows and it's really awesome, every single time i watch an episode(i call them that, cuz it's just like a tv series id watch on discovery or something) it makes me happy, thank you so much for doing what you do
We already knew it was a scam but way to go for dedication 9 months later to give definitive proof!
Great content as always! I was wondering, I've seen a lot of videos recently about an app that can turn your smartphone's flashlight into a projector and I haven't found anyone that has debunked this, have you heard about this? All the videos seem super shady, so I would have thought this would be up your alley!
I ran into the same thing a few years ago. I ordered a bunch of wall warts from China. 6 months later, I contact the company due to them not arriving and was told to wait a bit longer. 6 months after that, they said they would ship the order again. 6 months after that and the company was no long listed on Ebay.
I think it makes sense you would get less bacterias in the control : the first swab you do on the surface "cleans" it a little bit, so there are less bacterias for the next swabs on the surface.
You Tube still runs ads for the portable "A/C" and the phone charger that "fixes the manufacturer planned slow down"
Great to see you are an activist for same sex civil marriage as portrayed by your legions LGBT badge
Hey Ken, I have DMd you about a potential scam or at least some dodgey play! Great to see a final conclusion on this! :)
You didn't do a control swab. You should have done two swabs from the same spot without the uv lens, I suspect you'll see the same bacteria decrease.
But he didn't see a decrease, it was the dish he took from the second swab that had the most bacteria.
I suppose this could have happened if he, for example, took out both swabs and/or opened both dishes before starting, and so the tools for the actual sample was exposed for longer, or possibly he did something that contaminated the surface he was swabbing.
Your wiping off any protective grime layer off the bill and computer the first time you swab it. The second time you swab it your getting a better sample of the bacteria underneath the layer of grime. That’s why your getting that result from the peach tree dishes. If you took a bill and swabbed it in 2 different places the results would probably be more similar than just rewiping the same spot after disturbing that layer of grime
“Peach tree dishes” :)
(FYI, it is Petri dish)
you're a couch scientist? the reason his PETRI DISHES were like that was probably because of contamination from not wearing a mask. are you high saying there's a protective layer of grime?
Such a satisfying end to the UVlen episode. Thank you!
"Install immediately after opening the package"
What, will it...go bad? Do I need to refrigerate it?
"Store in room temperature"
Oh, whew.
But that still doesn't answer why I'd need to install it immediately...
I would love to see a basic spectrography analysis!
THIS THIS THIS THIS THIS!!!!
THIS is the part that's missing. All these tests are "fine", but they don't tell us what the product is ACTUALLY providing.
There needs to be a spectrographic measurement to see what is actually happening.
great! I enjoyed watching as this saga progressed. Just curious - what would you have done in the (seriously) unlikely event that it did work?
Another way to test for UV light is that tonic water (the stuff drank with gin) glows a beautiful blue/ green under it.
In order to convert low frequency light to high frequency light (like UVC) you will need optical frequency multiplier, or optical frequency mixer. I am not expert in light, however in RF (also electromagnetic wave), when two signal of the same frequency are feed in to RF input and Local Oscillator (LO )input RF frequency mixer, on IF port you will receive DC voltage and double of the frequency. In optical system light with the same wavelength will need to pass thought two different direction to create some distortion. Another way is to sufficiently high power thru medium that the signal start clipping, so it look more like square wave. Square wave generate multiple of add frequency (3xF1, 5Xf1,7xF1...). There are optical multiplier, I am not sure how therei are build.
I like that the Krazy Ken's lightstation has intel inside
I didn't expect the product to even exist at all
Loved the intel inside on the Amazon box
They definitely delayed it to prevent you from debunking it. Good job to your viewers!
For the app weirdness, they likely had to distribute the APK (or use a generic app for iOS) because they're either too cheap to get a developer license or know that their app would be taken off the app store and likely be investigated.
Fr💀
Makes a home made testing kit and says "its just a prototype but it'll work". It works and doesnt take 9 months and $15!
Great work on this video. I've been waiting as long for this video as you've been waiting for the product to be delivered.
It's pretty telling that they don't have an app hosted on Google Play or iTunes. I'm hoping that means Goggle or Apple would remove an app making false health claims.
Fr💀
Yeah just as you mentioned it, just like the air conditioners, the swamp coolers, now that winter is coming on they're starting to advertised special heaters I think you ought to check into that.
CMOS sensors on cameras have dye filters over sensor pixels to filter out everything but the light they're supposed to receive. UVC shows up as white because none of those dye filters (red, green and blue band-pass filters) were designed to block UVC light. Red, green and blue (and cyan, yellow and magenta) filters all let UVC through to the sensor. Violet and UVA light show up as violet or blue depending on the kind of color filter your particular camera sensor has. I have one camera where UVA shows up purple with a CYYM color filter and another camera where it shows up blue with an RGB filter.
Can you tell us a sneak peek of next iMac prototype fix video?
I found your channel thanks to scam debunking videos but stayed for the computer reviews, awesome channel!
Top ten things scam companies fear:
1. Krazy Ken
The best kinds of scams are the things that can be called out as bullshit with just the ads.
You need to totally debunk all of these bogus ‘UV’ disinfectant devices.
It utterly baffles my mind how naive people are - yet alone the laziness of never questioning anything.
Ive recently started seeing ads for that special quick charger that supposed to overwrite your phone’s OS and supercharge it and give it 57 hours of life. They are so clearly lies if you know even the basics
I was trying to get some LED based UV-C product for disinfection, after some research I found out there's no such thing, there are UV-C LEDs but their efficiency is abysmal, much lower than just the traditional mercury vapor discharge tube, because the material that makes LED possible aren't transparent enough to UV-C so the light just can't make it out of the junction very well and gets absorbed into heat.
So unfortunately you can forget about UV-C LEDs for a while, they're working on it, but so far it's still not as good as gold old glass tube.
Definitely curious if you plan on tackling the Saniwhite/any mouth piece brush. I saw an ad for one a day or so ago, and realized while listening to it that the tactics used to sell this thing are similar to the portable "air conditioner" thing. As in, instead of some genius kid, it's a military dentist, and...You guessed it, the dental industrial complex A.K.A the man is trying to shut them down...Why do people keep doing this?
“Fused amorphous silica”, aka “optical glass”, aka the glass used in any application where you need glass with consistent properties
I just noticed he has The 8-Bit Guy’s game on his shelf now!
The most thrilling conclusion to a trilogy since LOTR: Return of the King.
Way to go Ken!
Your opening line applies to when I ordered my RTX 3080 at day one lmao
took literally 9 months
The “intel inside” on the box of the light is so funny
UV Lake release when? 🤔
The saddest thing is the scammers got to keep the money for 9 months to infinity
I had thought you might have just gotten scooped by Linus on the PodsPro investigation... because they SENT him a REVIEW UNIT! But I can't tell if it's the same knockoff.
I still have to look into it!
The sensors that we use in cameras use sensors that are optimized for the human range of perception; however since they use a different photoreceptor chemistry than our eyes do, so they're often sensitive to frequencies of light outside human perception, hence why you have use a phone camera to track infra-red LED and see that in the footage.
You cold also use $, €, £ or ¥ bills to test UV light. Light any and compare with regular paper. They also have UV glowing elements.
Not only are they scamming people. In this case they are also putting health and life at risk.
The scam tech videos are my fave! keep up the good work. Bug fan
The saga concludes! Also DANG IM EARLY! love your vids Ken!
Just subbed. You are one of the rare people that give us assholes a good name. Keep it up.
the back of the newer iphone models are super slippery,i couldnt even get 3M to work on it.and even glue wouldnt stick as well as they would to normal materials.
If you're wondering why the UVC looks different on camera and to the naked eye, it's because of the lens in your eye's ability to partly block UVC, presumably as a protective mechanism for the fragile retina. People who've had their lenses removed for cataract surgery sometimes report that they see whites and blues differently, and the retina can partly detect the UV light.
Your camera just sees the UV light.
Walmart sold their full stock of actual uv lights... Small flourcent lamps .. for 5 bucks each..
I’m so happy that I found your channel, exactly my kind of crazy. ;)
Maybe in ultrafine text on the packaging it states, "for entertainment purposes only"
I assume that the color of the UV light changing on camera (cyan to white) has something to do with IR light or UV's similarities to it. I know that camera's can't pick up IR, so I assume that a part of the UV light's range is similar to this or it's also emitting IR light as well? This would explain why the color would change since your eyes would be observing parts of the lights essentially being omitted on film.
This was an immediate watch for me
This seems interesting from Amazon: UV Light Sanitizer for Phone - Portable UVC Light Sterilizer - Mini UV Disinfection Device Powered by Your Phone (Compatible with Android USB C)
I Was Listening To Fnaf songs while trying to fix my dad's windows 7 computer in X: Source boot, and i was blessed with this in* my recommended.
"Fused silica amorphous" is just glass. Dichroic is just a fancy way of saying "it only lets through one wavelength".
Amorphous fused silica is not "just glass": "glass" is a very broad class of materials with very different properties. Almost all glasses block UV light below 350nm: fused silica, or quartz, is a high purity glass made with only silicon dioxide and is one of the very few glasses with high transmission in the UV-C range.
"Dichroic" is a way to build filters, and you can do much more with them than "letting through one wavelength"; they are the preferred choice for high transmission filters and for high power applications.
I have to say, if you disregard the broken English, the description is surprisingly specific and accurate; on the other hand, that filter is not a dichroic, and almost certainly not made of fused silica. I would be surprised if it were made of glass at all; most likely than not, it is just tinted plastic.
@@Beregorn88 Ah, thanks. I was being reductive.
"Dirty Dollar Bill" is a great name for a band.
Ken isn't a scientist, he's a sky-entist
Please please please tell me you were wearing protective eye wear when looking at that uvc lamp...it can do some serious damage to your eyes.
Simple, you swabbed the same place both times, but on the control test you had already swabbed that place once, on the variable swab. you had aready taken all the bacteria with the first test
.
He said that the control swab was done first, then he used the phone with the UVLEN, and took another swab, and it was the dish used for this second swab that had the most growth.
He said he tried this again and had the same result, the second swab had more bacteria than the first.
Perhaps he took out both swabs and/or opened both dishes before starting, and so the tools for the actual sample was exposed for longer.
I doubt he himself and the area was fully disinfected before doing the tests, so it might simply be that spores or bacteria dropped on the surface when he was moving about.
Camera looks different because the camera can see a bit beyond visible spectrum, both IR and UV. Check when you point a remote at phone cam. UV same thing, color slightly different, your eyes see less than the cam.
When folk think it would be a good idea to use dangerous UV-light to clean their hands rather than use safe soap and water to do so, then I start to wonder If I maybe belongs to the smarter part of the population after all even I have a gaming chair.
Love the follow up. Didn't think it was coming!
Scientific facts on UV light looking different to the eye vs on camera: your cameras sensor doesn't have the same sensitivity as your eyes. Try using a GoPro to look at the UV light, and then use a nice camera, then use a spectrum analyzer and you'll see the difference. GoPro's have notoriously bad sensors for violet light.
Just so you know Linus Tech Tips just did a Pro max headphones video.
There is a difference between the eye and the camera because the camera sensors can "see" a spectrum a little bigger than ours and mismatches it with UV or IR, under or over ours, that is why you can see an infrared remote flashing on a camera, but not on naked eye. same is true for UV
I had something similar happen to me, about the mailing part. I was buying magic the gathering inner sleeve with a special black border going around the ends. They’re used to make white bordered cards look like black bordered ones. They were coming from the UK and was having some type of importing issue. I waited about 6 months before I emailed them requesting a reward which they gave me and apologized. Literally the next day I received the sleeves in the mail and I instantly emailed them telling them to cancel the reward as they finally showed. I was apologizing and was laughing at the odds of that happened.
The most accurate test is using spectrometer
Should just use a slab of willamite as your uvc test. More fun than the test strips. :)
Bookface is aggressively advertising more "negative ion EF blocking pendants" at me. I suspect they're probably radioactive.
Another great video! Thanks, Ken
The explanation for the difference between the camera and naked eye color is that our eyes do not detect UV, but camera sensors do and render it as a visible difference in color on-screen. The UVLEN is just a blue filter on a white LED so no difference here.
Ah, so that's how you get UV light, no need for fancy electronics or high voltages, just a piece of purple glass/plastic. 😏
please do the DUNE PRO .. is a mac pro clone pc case that scammed nearly 2m and never ever deliver anything to customers !
Wait really? I was in an email conversation with them about a year ago because I wanted to do a hackintosh build with it. I’ll have to check in that.
@@ComputerClan yes really its been lie 3 years they still haven't deliver anything and promises after promises and they was still paying for ad and taking money without even considering the backers check it out .!!
Great video, but, I mean, they still sell magnetic or magic wristbands. Every few years they come back in a new format.
6:07 It's probably because the camera is likely ALSO picking up the UVC light itself along with the light visible to the naked eye, and if you've ever seen infrared light through a camera with no filter, that comes out as white too, so there's my guess as to why it's happening.
BTW .. i always found there was plenty of uv in sunlight( where i am in aust) a lot more than in the UV bulbs we used..
I am sure someone else may have said this after a year. The dishes worked, the led on phone still produces some uv light but that filter negated the uv, as well as how they produced the led… try your experiment with your home made uv light and watch what happens
I love this channel. Krazy Ken you are the King of scam product reveals! Love your videos
I see a copy of Attack of the PETSCII Robots back there. You and the 8-Bit Guy should collab again sometime!
And awsome video, as usual. Been waitin for the epic conclusion to the UVLEN saga.
Thank you : )
Oh, I also know this isn't a HUGE collab, but him and I were in The Geek Pub's recent arcade episode (near the end). : D
@@ComputerClan It's better than a cameo, that's basically a crossover!
I'll check it out, thanks!
You should of got of the sci channels who have chromatic meters! Great video as usual.
I've always assumed that if I lost some weight my head would shrink but now that I've seen this guy I guess I was wrong
MY MAN!
I'm a biologist and the reason you're getting nonsense on your petri dish is that the air, your breath, and the swabs themselves are gonna have more crap on them than anything you pick up from the dollar bill.
Also always do replicates!