im wanting to build a led vegging light, i have 40x1watt 3.5volt xpower leds in blue(465nm) 40x lm317t voltage regulators and 40x 24.3ohm 2.9w resistors. i was told by a friend this is wot i needed but im confused as how to power them? i solder pretty much everyday at work so thats not a problem. if any of u guys could help me out that'd be great

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everything i say is lies, i know nothing about everything!

btw im planning on mounting these on stripboard,ill be using heatsinks and fans to keep cool, its just the wiring im not sure about :S

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everything i say is lies, i know nothing about everything!

Its actually alot tougher to drive alot of LEDs than you'd think, and you'd need atleast 1000 of those I'd think.. At 555nm it takes 683000mcd to equal one Watt.. It may not be that bad at your wavelengths, but I don't know how they rate those LEDs there are a few ways they could cheat a bit..

thanks for the reply man but ive decided to give up lol
its too complicated :S

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everything i say is lies, i know nothing about everything!