Here's the completed LED array. Made with 2 scrap yard CPU heatskinks, 2 Cree XRE white LEDs, 4 Cree XRE Royal Blue LEDs, some scrap acylic for splash shields and a few nylon and stainless screws. The heatsinks were drilled and tapped and the LEDs are held on by the non conducting nylon screws.
Total cost of the lighting was 6 LEDs at USD $5.25 each, probably about $1.00 for the heatsinks, USD $20 for the buckpuck driver and $18.90 for the 24v wall wart. Oh yeah, 24 screws at about $0.07c each. Grand total is about $78.
And here they are fired up:
It's fairly blue with this mix of LEDs. Probably close to 18,000K or 20,000K.
I'll get a shot on the tank later when my daughter drags her butt out of bed as the tank is in her room right now
