OK.
Moving right along.
Got the leds mounted to the heatsink.
[attachment=o215763]
Running some burn-in tests with my bench supply while I wait for that slow boat from China.
[attachment=o215765]
Here's a 45 degree lens.

(Oops. I'll insert the lens pics in the next post.)

Only gained 25% when I used these with the reds.
Not worth the heat increase.
Same lens on the blue led doubles the lux reading at 12"!

Am waiting for some 60 degree lenses for the reds
Meanwhile back on the photon pharm.
[attachment=o215766]

More later.
Prolly much later.

Weezard
Weezard Reviewed by Weezard on . Calling out to Weezard for LED advice My friend, I've read your stuff here and at Steve F.'s site. I want to build a dedicated flowering lamp using Ledengin 15 watters. (4 reds, 1 blue, and possibly 1 warm white; LM 317's so I can tweak the ratios.) Essentially, a copy of your 4+1 cake pan lamp but built on a 4 x 18" finned heatsink so I can see what's going on under it.) If I were to post my picks for power supply, resistor ratings / values, etc., would you critique and perhaps offer some guidance? I have already purchased Rating: 5