Here’s my latest light build– three 10w LEDS (two warm white, one royal blue) on a heatsink and fan assembly. It’s getting pretty hot (60 degrees c) at the moment, and I think would be dangerous if the fan failed. The next step is to add a thermal fuse to cut out at about 100 degrees (c) in case the fan gives out on a hot day!
Mounting LEDs to Heatsinks
I’m getting pretty good at mounting high power LEDs to aluminium heatsinks; here’s the procedure:
1) Drill some pilot holes
2) Apply heatsink compound
3) Use small self-tapping screws to attach the LEDs to the heatsink
Make sure you drill holes smaller than your screws!