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06-02-2009, 08:58 PM #33Senior Member
Cree Xlamp Grow-Light Schematic Design (Wanted)
Hmm, Let's think about this.
You have 4 leds in series.
2 red, 2 blue.
Your spec sheets say red Vf = 10.5V avg.
and blue Vf = 6.5V, avg.
So, 10.5 + 10.5 + 6.5 + 6.5 = 34V.
The total min. Vf is 32V.
So, if your supply is enabled, and you are providing at least the minimum required Forward voltage, betta call da doc, you've gone blind brah.:smokin:
(They warned us when we were teenagers, yah)
My advice, (in braille of course),
Buy a cheapo meter, horse!
Meter gonna let you "see"
what's up wit 'lectricity.
It's electric, it's expensive,
you should be more apprehensive.
What, you no kea win dis bet?
why you work wit' out a net?!:wtf:
Nice pictures.
Aloha,
Weeze
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