heatsinking leds

D

**DONOTDELETE**

Guest
Overdriving a led should be safe if you could
take the heat away. I was thinking of soldering some wire to the led legs to dissipate heat, but I don't know how or if the chip is grounded. Has anyone experimented? or is it dumb?

hobo
 
Lots of copper on a circuit card will do wonders. I've run a regular white led at 100ma when mounted on a 2oz 1/32" pcb card (5 x 1 1/2") and it doesn't even get warm.
 
Another route is to build your own PR base from heavy copper plumbing fittings, nylon washers, and brass screws(+. The 1/4" copper pipe is perfectly sized to replace the PR bulb. And lots of copper to draw the heat away from the negative lead.
 
So it is the negative lead, I was thinking that they "glued the chip" with the same
plastic the lens is made of, because I can see two wires. Well I'm glad the bond can conduct, I was starting to think that the lens was the conductor.

Is that 100ma overLed still running?
When are ya gonna put a fan in that Luxeon
smile.gif


hobo
 
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