Constructing a cheap UW video light...

[lonerider00]

So no heat sinking needed for these leds?

I like the look and the simplicity.

LEDs don't produce a lot of heat. That's why they use so little power and last so much longer than incandescent. I have all of my 100W bulbs in my house switched to LED and even after being on for 12 hours, I can hold them in my bare hands because they're only slightly warm to the touch.

 

[undrwater]

LEDs don't produce a lot of heat. That's why they use so little power and last so much longer than incandescent. I have all of my 100W bulbs in my house switched to LED and even after being on for 12 hours, I can hold them in my bare hands because they're only slightly warm to the touch.

Depends on the LED. Many of the new CREE LED UW lights have aluminum bodies and fins to help with heat-sinking. I'm guessing the LED's on this project are similar to the house appliance you are speaking of.