Water Cooled LED Flashlight :)

Funny creative and informative simultaneously. Win.

LoLoLoLoLoL vestureofblood! There are some inexpensive and good waterblocks you could have used, with the MCPCB installed over.

I understand that was a sort of quick “let's see how it goes” project, though.

Did I read someone claiming “up to 18A (2S) for the newer XHP70.2s on an L6” in the video comments? Freakin' seriously? Can you make some scrambled eggs with it?

YOU ARE A NUT!

So fun….!

Very cool build, you kept my attention, kind of mod I like to see. Could see this easily being used on a scuba light, two opening and a pump, no tank needed.

Cool demonstration of how high power leds can run stable at these powers, and a fun video to watch :slight_smile:

Well done, fun project :slight_smile:

The bit at the end where you were running around with that thing was priceless :slight_smile:

Thanks for posting (and providing proper captions) :+1:

Yeah me too!

Epoxy FTW!

I have some of the 70.2s on the way. I will do a test with them once they land.

:slight_smile:

Very Nice—That light is almost as big as the BLF GT—— JK
Did the water eventually get hot in the jar

Not really. Probly the longest I have run it was 10 minute bursts. This took room temp water up a few degrees, but not even what I would call warm.

completely “cool” project, thanks for sharing :slight_smile:

That Brass tube is pulling lots of heat also—Have you tried without the water flowing

I thoroughly enjoyed this video! You ‘running’ at the same speed as the car was awesome! Does the reflector have a window?

Great video and fun to watch.

Another Cooling Idea?
.
.

I wonder if anyone has tried to cool a LED using Glycerin?

It is a nice clear viscous liquid with very low electrical conductivity.

Encase the LED and wiring inside a small glass vial and circulate glycerin to keep it cool.
Should work ok.

Perhaps someone here with necessary tools etc may try this next.

when it comes to thermal path from the MCPCB to water it would have been more useful to cut a pattern with a CNC to it than reducing the thickness

they basically push the water against the copper like you did, but increasing the surface

just copying from PC watercool blocks

LOL’d, liked and subscribed, nice work Matt

Good stuff, thanks for sharing.

Next up, an AIO CPU cooler?

Nice!

Now for the next step:

What a terrific video! It’s sure to be shown many times at your sanity hearings. :smiley: