How deep can you dive with cheap amazon dive flashlight? Deep sea chamber test!
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- Опубликовано: 23 янв 2021
- How deep can you dive with your cheap amazon dive flashlight / torch? We are going to use our deep sea chamber 10 000 000 high pressure chamber to find out how waterproof cheap flashlights are!
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We filmed dive watches today and it's going to be a GREAT VIDEO! Everything worked really well and results are really interesting!
When I read your comment, I do it with your accent. :D Don't get it wrong, I really like it. I think it's pretty gooot.
Id love to see some of the dive watches
Yeaaah ! When ???
Anni, you look particularly gorgeous today with your hair up like that and in your hoodie.
Glög glög glög!
1:31 - "It goes from like... 0 to a lot"
Ah yes, the sacred measurements...
I mean he gets the message across. Everyone understand what he means by that
I wonder if putting a bit of air in the line would help... Water's incompressible. And with the way hydraulics work with Pascal's law, that large press probably has some force scaling going on by putting the pressure into a smaller area.
Thinking if you had a leg of the line with air, you could read the pressure off that bit of line as air pressure, and it'd still work out right for those lower pressure scenarios.
It has 69 likes already so this is my like! Lol
And don't forget, "I bet less than one person would guess it." So zero?
From my scuba diving times, I remember that the limit for cheap back-up lights was not imploding, but rather damage due to internal leakage, causing electrical failure. Great test again my friends!
If possible do some wrist watches like g shock see if they can go 100 meters and so on
@@hene193 well maybe he can work something out... It would be cool to see what these watch company's say the watches can do and see if they are lying to us..lol
Yeah, good idea
Was going to suggest testing those 100m (10 bar) or 500m (50 bar) water resistant watches.
Yeah, my Seiko is rated for 200 m, I'd like to see if it really is!
Yes, definitely try G-Shock watch. They have 20 bar rating. They even have videos with watch going down to 200 m. If it survives, put it under press.
Bambi is thinking "oh, shit. This is the HPC people's house, they are going to deal with me." XD
Low voltage electronics are usually fine with water, but only for a short time. When the corrosion takes place, ~0.03mm thick copper traces on the circuit board are gone quite fast, especially if there is salt involved. Salted / non-pure water can also cause "immediate death", if there is some sensitive signals, that cannot tolerate a slight conductiveness of the water (for ex. mobile phones etc). I would guess that the first flashlight broke immediately because the contacts moved physically when the plastic gave away
actually in salt water these lights will still shine for like a hour then die permanently (speaking from experience)
@@vmark1111 I'm a little surprised that salt water wouldn't immediately short them out since it's so much more conductive than regular water. But I guess if the switch is on the path of least resistance would still be through the LED circuit, so even if the battery is hemorrhaging charge through the salt water the light would still be on while it's doing so.
@@facedeer That's right. Compared to the LED, the water is not a short circuit. More complex flashlights will die quicker due to the thinness of PCB traces and fragility of sensitive electronics.
For me was interesting that the plastic one started flickering right before its death. I guess that there are some microchips to control the LED and water inside made a small current leakage that influenced the chip on the PCB.
You can use distilled water to prevent corrosion and voltage leak.
This reminds me of the batyskaf (special submarine) Trieste. The only pressure tight compartment was the Ø 2 m crew sphere. To save space in the sphere, most electronics, e.g. the batteries were placed on the outside and were subjected to the full pressure at almost 11 km depth. The electronics bathed in transformer oil so the pressure could be transmitted without filling up with conductive sea water.
So... When you draw a line, is it actually a Finnish line?
Reported...
@@mightybaldking Fair enough
. :D
To finish first you must be Finnish first
Suggestion: tape a small tie clip microphone to the case of the pressure tube so we can hear it when something fails!
I was thinking the same thing. "There is some sounds!" is great commentary, as usual, but a mic tightly attached to the case would be better.
Lauri: "Bambi animal."
Juan Pablo Montoya: "Oh deer! He he he he"
Anni looks like she's really Anni's younger sister who is pretending to be Anni 🤷🏼♀️
Ya I noticed she seems so much more animated in the last couple videos lol
She lost weight too, no ? She looks like happy bunny
Interesting. The first flashlight's lens was bent by the pressure, and the beam of light got narrower.
There was some change in the light quality, but it's difficult to say exactly, because of the modulation on the light.
@@aveekbh if you look at the lens, you can see it getting distorted
Yall, crack me up. The response to standing in frozen water for 3 days waiting for the carousel to spin...hilarious.
SUBSCRIBED 👍
These two are definitely the most badass couple I know of
Very nice! Try putting a snow globe in there!!
I don't think much would happen. The water in the globe would help keep it from crushing I'd suspect.
That would be super weird to watch I imagine but a great idea nonetheless
@@Bl4ckD0g the glass would probably break on the snow globe because the liquid inside of a snow globe is a set density if it was a stiff type of rubber that made up the snow globe then yes your comment would be correct but it is solid glass which does not like high pressure on one side of it and low pressure on the other side
Plastic diving lights tend to switch on when you dive deeper: the pressure compresses the case and connects with the batteries.
If I remember correctly, the ratings for how waterproof a thing is are based on an amount of time at a certain pressure - e.g. 30 minutes at 10 meters. It would be interesting to see “endurance” tests of lights like this - how long will they stay on at the sorts of depths they’re likely to be exposed to, or how long before they start to fill with water?
Would also like to see tests of lights intended for work environments, like the Streamlight Dualie, or Pelican models.
Excellent video- it’s fun to see you refining these things over time. 👍👍
3800 bar is equivalent to 55,000+ pounds force per square inch pressure, that's one hell of a light! Thanks for the videos!!!
You should try an old Nokia Lumia 800 as they where indestructible. I remember hearing one got dropped into a Norwegian fjord and it survived under water for nearly a year. Just needed drying and charging. This is the same phone that could hammer nails into wood.
I’m glad to see the yellow flash light survived that pressure because I bought 2 of them for free diving probably to 79-80 feet ! Thanks
Underwater camera housing 👍🇬🇧👍
I'd love to see which brands leak first , like go pro. Love your channel been here since the start 👍 thankyou
@@garethwilliams1058 Yeah, good idea! And also see if the memory card survives! 🤔
@@gus473 good thinking. 👍
Yes! With actual camera while it's recording. :D Could get expensive.. lol
How about trying some vacuum bottle brands, such as Stanley, filled with ☕ coffee or pea soup?
If they are full they will be very hard to break
@@CED99 They have a void between the outside and inside that will crush easily.
I loved that test. Amazing how deep the cheap plastic torch went to! Your videos are brilliant guys, keep it up! 😎😎😎
Testing with salt water would be better for electronic devices, tap water is not conductive enough!
He literally says that in the video
Yes, salt water should have worse effects.
And perhaps add a piece of dye-soaked paper in the lens housing, so it might be possible to see when water enters (water in the lens housing should change colour).
Plus salt water is more dense than freshwater
Just wow. Go ahead then put your phone under tap water.
That would have zero effect with low voltage direct current if all connections are secure or mechanical!
I have that exact diving light so it’s great to know. Thanks!
Hi! Great Video! I have that yellow flashlight! I have taken it to 40.5M depth(turned it on and off multiple times). .5 Meter over recreational diving allowed.
So, i got 2 of those yellow flashlights for 20 dollars + 2x 18650 Batteries( worth 20 dollars) ... And they work great. A diving flashlight for 10 dollars with a battery worth 10 dollars in it??? ... Its a steal, be careful with the ring and seal, make sure it had silicone lubricant, it works great for me, 3 years going.
ANOTHER PLUSESESES: Yellow flashlights DO NOT DRAIN BATTERY IN STORAGE... Huge Plus!!!!
DOES NOT OVERHEAT OUTSIDE OF WATER.... AGAIN... 20 DOLLARS FOR 2 WOTH 20 DOLLARS OF BATTERIES INCLUDED.... Its definitely worth the price.
both of you have way too much fun. excellent! i watch a lot of your videos
I kind of expected to hear "It's not very dangerous, and we don't need to deal with it".
That would have been funny.
How about a cheap transperant lighter?
Also a chap transperant lighter that can be refueld? The valves have a very small diameter - should need a lot of pressure to open it with the water. Or it will just explode^^
Great idea, and great execution, thumbs up.
And for other prodects to test, what about trying IP68 mobile phones, like Samsung Note 8, 9, 10, or maybe 20
Probably more like Note 8, ect, the note 20 would be too expensive to destroy
Thanks. This made me understand more what happened to the Titan.
Great video with my morning Coffee.
That was an awesome video as always!
Yeah distilled water doesn't conduct electricity and only the impurities in fresh water conduct at all, still not very much tho. But salt water is obviously a different story - my almost new Mares 15RZ torch leaked at 50-60m in salt water and the battery chamber bubbled brown fluid when I opened it. GREAT video thanks guys, that plastic torch totally blew my mind!!!
Love these depth test videos :))
This is my favorite science channel!
You guys are awesome:) big fan of all your channels, wanna send you some stuff to crush at some point... keep up the good work! Oh and your pronunciation of stuff like 'pressure'.... brilliant! :D love it! Don't change a thing!! Much love from the UK!
Great video! I sense many fun things to come with this contraption! Lol
Send those flashlights to BigClive so he can do a teardown and analysis!
Just send him everything. He is hoarding staff anyway )
Thank you for the flashing lights warning. I have seizures.
Thank you for testing these. I have a couple of the bright yellow scuba lights, they're great for caving due to their water resistance.
I'm no diver, but I was curious to see if they were actually rated for it.
Would it be possible to make espresso using high pressure without grinding the coffee beans. Espresso machine goes only around 9 to 15 bars.
I think you'd have a hard time getting enough resistance to the flow of water to build up any pressure. With higher pressure you might be able to make it with finer-ground coffee, although it'd probably taste pretty terrible and you'd need a finer filter too.
@@jimsvideos7201 Largest issue is channeling, which can be seen on normal espresso machines. It's the classic path of least resistance, similar to a hole in a filter. It leads to that portion being majorly over extracted while the rest of the coffee is barely extracted at all.
I love your videos, my friends. Cheers from Argentina
5:35 LED lights are constantly flickering but they do so at a frequency too fast for our eyes to pick up. However, even non-high-speed cameras have a high enough frame rate to detect it. So the weird artifacts in the camera's image that you see are a result of the difference between the frame rate of the camera and the flicker rate of the LED bulb. If you have a high-speed camera and can play with the capture rate you'll see those moving bars move faster or slower and change in width.
For reference, the "framerate" of our eyes is around 12 FPS. Anything below that and we see it as a series of static images rather than a fluidly moving image. Standard cameras are usually either 30 FPS or 60 FPS.
I like this new grip on preasure slowmotion. Could you try high pressure ignition?
You can tell if equipment is waterproof when the water doesn't want to come out again 😆
I think the smoothing capacitor on the PWM driver popped which caused the banding picked up by the camera just before the circuit was flooded
It gives you a good sense how scary the pressure really is, considering the manned submarines that go down to 6km depth!
Nec when the internals get wet, it'll rust. Also you're right, salt water should short it out.
Plus it's more dense so it would increase the pressures put on the objects.
Rust hardly covers it. In seawater they would get exposed to chlorine and sodium hydroxide as a minimum due to electrolysis.
@@gordonlawrence1448 yes, that's why I mentioned that rust will happen when it gets wet (as in what they just did, with regular water) but as a separate sentence, agreed that salt water would act differently, and probably short it out.
@@benjamindudley3798 I'm talking about electrolysis not rust. Rust is caused by oxidation. Electrolysis is electricity splitting compounds that in the case of seawater are highly caustic. They are distinctly different things from a chemistry and physics perspective.
Very interesting results i gotta say
Test waterproof boxes. I've seen them from $150 to $ 25. Keep going love your content.
I guess the hissing sound of the aluminium flashlight was when a seal broke and the water flowed in, from then on it was pretty much perfectly pressureproof since there were no compressible components left. Explosive decompression of this thing could be fun though
Video suggestion:
“I Almost Died!”
Cuts of all the close calls and times where this was said.
It's called clickbait, there's a reason bait n switch is illegal
@@johndowe7003 It’s not clickbait when your actually showing all the video’s he actually says it in. Duh!
Click bait and Bait & Switch are 2 completely different things!
@@MjrNiGhTmArE I wasn't talking about hpc , I was inferring to other channels
You two are awesome, charming, and your content is fascinating to watch. I love waking up to a new video that's...ummmm.... hot off the press! Much love from Utah, USA!!
From hydraulic press space program to the depths of totally tubular content, semi-scientific journey across question you never asked yourself.
I really enjoy how this channel spans the most random topics that are tangentially scientific (yes reminding me of Braniac still).
i mean it is "pretty good" to quote the hosts.
The PWM-like effect come from the flash light flickering at almost the same frequency as the capture frame rate. It happens pretty often when you try to capture indoor at 60 or 30fps in the US where the mains run at 60Hz. Or if you try to capture at 50 or 25fps in europe.
The fix is usually to offset the capture rate slightly, like switching between 60 and 50 or 25 and 30. You might want to try that next time if you can.
Nice test! About the second lamp i have tried one like that and it failed at only abot 2 meters depth but still working.
But after a while it diead of corrosion from the wather, it was not water proof. Thank you for showing this!
10:35 I'm so glad you didn't have to deal with it in a press.
Nah, that's usually done with a high speed one way piston at 3000fps. Venison is good stuff.
his channels are the only ones i disable my adblocker for.
I would really like to see some fruit and veggies put in the pressure chamber.Also could there be a way to put a vacuum tube inside it? then when it breaks there is no air just a void?
Always love your videos Hello from Vernon ,Okanagan , British Columbia ,Canada
The seals are usually the cheapest area on most anything stating as waterproof..
Got to love that deer at the end "Bambi"! Lol
you got the like just for the "doo doo dooo dooot doot doo..." sound when getting the flashlight out. lmao cant wait to see the watches!
That was surprising 😂
This video was........enlightening. :)
Excellent video! You could add monitor from camera for yourself to see what happens, also high speed camera might be interesting.
BtP, could you use oobleck in place of water to assist in explosive breaching? Army detcord door knocking?
With regular replacement of orings and a little silicone grease, These same backup lights have served me well to 40 meters for several dive trips.
When doing these tests I recommend leaving some air pockets. The reason is the following: since water is not compressible, any crack in test subject will slightly increase volume of water, immediately lowering water pressure. This is totally unrealistic; when under water column, cracking will continue since water pressure will not fall. If you have some air pockets, the air will expand and prevent sudden drop in pressure.
Do Packing peanuts out of foam still float if you pressurise them?
Oh wow I’m pretty early lol I would love to see a bigger tank! You could put so many things in it
can you press eksospipe in water, welded in a plate in both ends.
Glow sticks as shown in Hellboy. Can pressure activate them? Do they still work the same under pressure? Maybe they could still work at the bottom of the ocean.
you can place some dampening material on the press or springs to get more precise lower pressure
I've killed more than a few small dive lights. Usually what happens is the oring fails to seal after sealing it back up and it just floods. Some I've physically cracked open because they were weak plastic.
But once the water gets in there, especially if you don't immediately notice, the electronics are toast. Even with fresh water it's often dead, even if it still works right after the dive.
Usually the better lights will have machined sealing surfaces, be either aluminum or delrin, have dual orings, and probably deeper seated orings in that machined surface that helps prevent extrusion.
It's rarely a question of reaching design depth though as to why they fail.
For more spectacular fails in the pressure tank you should look at some of the larger diameter low end lights that take C or D cells. I suspect those would deform and blow quite nicely.
Could you fill them with some kind of oil and re-test...?
Hey Lauri and Anni do you think adding salt would make your tests more accurate considering salt water is more dense than freshwater? Just curious
Could you do the same test with a flashlight from olight.
Really really cool videos.
So what is the use of the metal frame? Or the water-tightness of the plastic frame?
Great channel. You could just devote this to watch testing. I loved the dive watch video. Put some budget casios in there & see how they hold up.
Hello, I am curious if you guys can test deepblue watches
Canned food should be waterproof, right? :) You have plenty of experience with them :)
Yes, test surströmming. You can find out the internal pressure, when the can goes back to flat.
@@semifavorableuncircle6952 the uncompress fast to be surstromming smelly decompression explosion
It would be cool to see one of those Japanese glass floats implode in there.
Try a snow globe, one of those light up balls, and or maybe a rubber duck that doesn’t have the little hole at the bottom
I keep seeing the puller 5 million behind you and wondering when we're going to see more videos with that beauty!
That proves that Anni can go to 3500 feet with a flashlight and be able to signal you, not tonight. hahahah
Hey, instead of pressure from the outside, what about making a fitting so the flash-lights could be pressurized from inside?
Flash-light bombs?
Great video! Please put some watches including some dive watches in there Cheers!
Could you Test these outdoorphones for waterproofness?
crush a small compressed air can like a air refresher?
I agree with watches, perfect for this thing.
How much pressure does it take for an o ring to fail?
can you pressure test gopro camera housing please?
Can you test the Suptig 84 LED Waterproof light for depth?
can you sous vide in the pressure chamber?
When you need a flashlight to dive on the Titanic. lol
Because your budget is as tight that your other equipment are diving fins, swimming goggles and a snorkel.
The horses are running away! But priti good video!
8:50 Clean tapwater is only slightly conductive, so even with the leakage current caused by the water, the led wil still light up.
Sea water is very conductive, so it will cause a considerable short circuit. The batteries will quickly run out, and any semiconductor circuitery will be biased completely wrong and likely stop working.
work lights are designed for if you drop them in shallow water hence why they have buttons, also yes in some cases battery operated lights are not affected while submerged/ filled with water. Dive lights in contrast usually don't incorporate buttons because of the high potential for failure which is why they incorporate a screw down activation system.