How deep can you dive with cheap amazon dive flashlight? Deep sea chamber test!
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- Опубліковано 23 січ 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 ???
Glög glög glög!
More of these videos a lot. That is a lot more videos than just a lot.
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?
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.
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.
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!
Bambi is thinking "oh, shit. This is the HPC people's house, they are going to deal with me." XD
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
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.
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.
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
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!
Plastic diving lights tend to switch on when you dive deeper: the pressure compresses the case and connects with the batteries.
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
Lauri: "Bambi animal."
Juan Pablo Montoya: "Oh deer! He he he he"
Yall, crack me up. The response to standing in frozen water for 3 days waiting for the carousel to spin...hilarious.
SUBSCRIBED 👍
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
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. 👍👍
I loved that test. Amazing how deep the cheap plastic torch went to! Your videos are brilliant guys, keep it up! 😎😎😎
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
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.
These two are definitely the most badass couple I know of
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.
3800 bar is equivalent to 55,000+ pounds force per square inch pressure, that's one hell of a light! Thanks for the videos!!!
both of you have way too much fun. excellent! i watch a lot of your videos
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.
Great video! I sense many fun things to come with this contraption! Lol
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!
This is my favorite science channel!
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.
I have that exact diving light so it’s great to know. Thanks!
Thanks. This made me understand more what happened to the Titan.
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^^
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.
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!
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.
Great video with my morning Coffee.
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!
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
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!!
Love these depth test videos :))
I love your videos, my friends. Cheers from Argentina
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!!!
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.
his channels are the only ones i disable my adblocker for.
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.
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.
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.
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.
Test waterproof boxes. I've seen them from $150 to $ 25. Keep going love your content.
I would suggest that the o-ring is the more likely failure point on metal torches. The pressure over time is more often that not what causes them to either pop or to deform and let water through. When you've had an o-ring go at 30-45 metres you quickly realise how much water will ingress once the seal is breached. Probably worth noting that substantial pressure over a relatively short period, or with gear that hasn't been immersed in sea water, isn't really going to provide an accurate test. You'll find many of the very high-end diving lights have a separate power supply and a cable to the lamp to keep the points of failure to a minimum. But you can't really call them torches in so much as they are dive lights or lamps - much bigger, heavier and bulkier.
But nevertheless a really interesting clip. Thanks for the work guys!
Send those flashlights to BigClive so he can do a teardown and analysis!
Just send him everything. He is hoarding staff anyway )
I like this new grip on preasure slowmotion. Could you try high pressure ignition?
The seals are usually the cheapest area on most anything stating as waterproof..
Excellent video! You could add monitor from camera for yourself to see what happens, also high speed camera might be interesting.
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.
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.
It gives you a good sense how scary the pressure really is, considering the manned submarines that go down to 6km depth!
Got to love that deer at the end "Bambi"! Lol
We used to pressurize cheap flashlights to 1 bar (2 bar absolute) and dive with them. A Shrader tire valve worked fine. We never dove more than 25 meters or so.
One have to put some oil or cream or something to prevent water from coming in. Sometimes it helps much more than anything else :) Thank you for sharing Bro. Keep the GOOD WORK :) GOOD LUCK TO YOU AND YOUR WIFE :)
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
Water doesn't hurt electronic so much in the first moment but after few days one of electrodes will become fragile and fall apart. Direct current (from batteries) makes corosion process much faster. For AC devices is water not so harmful.
Usually copper conductors turn green and contacts stop working. I repaired many electrical devices that were damaged by water.
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.
you can place some dampening material on the press or springs to get more precise lower pressure
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.
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
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
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
the second one, thats impressive, mark that one for sending to the bottom of the challenger deep, damn. lol.
the only thing I can think of testing aside from venus drones that would also include extreme heat and acid clouds, would be maybe a GoPro if there was any way to properly test maybe just a GoPro add-on diving housing for one to see when it implodes. making a kit to run wires to a GoPro to monitor when it cuts out recording would be a PITA, so maybe just the extra diving housings, maybe (shrug).
Great vids. B)
The horses are running away! But priti good video!
This is the kind of product testing which i prefer, destructive!!! :)
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.
Wet flashlights can work for a while but they will corrode in now time due to voltage. It is like electrolysis cell when it has water.
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.
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
DISAPOINTED!!
Todays extra content "Bambi-Animal" was not extremly dangerous and it wasn't properly dealt with.
You could try to compress some weak metall like lead. Measure it before and after with a micrometer screw gauge to see if it gets compressed.
Oh wow I’m pretty early lol I would love to see a bigger tank! You could put so many things in it
I’d like to see how an incandescent light bulb under pressure. Obviously you’d need to test it without power. I just wonder how much pressure it will take to break it.
I really like you channel.
BtP, could you use oobleck in place of water to assist in explosive breaching? Army detcord door knocking?
I called it immediately when I saw the aluminum flash light. I have one just like it and it pretty much is water resistant. But water proof is a stretch. The rubber on the switch is not captive so any pressure pushes it in and allows water around the switch.
I thought the water pressure would push on the switch on the second light and turn it off but not break it - either from the pressure or the release of pressure if it's a switch that turns the light off when you push it in and then let it pop out again.
Thank you for the flashing lights warning. I have seizures.
Now send it back to amazon. "Was just snorkelling at around 500m and it failed. Had to go the other 500m in total darkness."
Very interesting results i gotta say
I keep seeing the puller 5 million behind you and wondering when we're going to see more videos with that beauty!
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.
I believe flashlights like the aluminum one tested here are sealed not necessarily to keep water out but sealed to keep gases out. As a security guard I’ve come across multiple gas leaks and every single time the technicians that come out are very mindful as to whether you’re using a tactical flashlight or not and I believe it’s for that very premise. No one wants to go boom!
For what its worth, the diving flashlight was already starting to fill with water as soon as the press came on, so maybe about 80-100m tops before it becomes a sponge. Can see the beam angle changing on the LED, indicating water getting in.
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
Could you fill them with some kind of oil and re-test...?
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!
A good idea, perhaps, might be a scaled down submarine (model). Those things are meant to go underwater to quite some depths.
So what is the use of the metal frame? Or the water-tightness of the plastic frame?
Do Packing peanuts out of foam still float if you pressurise them?
would love to see water proof cameras. before and after extreme pressure testing camera shots.
can you press eksospipe in water, welded in a plate in both ends.