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Unread 05/07/2012, 12:10 PM   #21
Euler Kernighan
The "DIY Guy"
 
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Join Date: Sep 2010
Posts: 453
DWMZ / TeraHZ,

thank you guys for helping us on this!

one more thing (last thing?) gimme your honest opinion here, i'm try to do:


a) six modules fixture, each one with 40 LEDs - each color Dimmable - modules don't "talk" each other
ratio of: 14 WHT (cool or neural?) + 14 BL (8 BL + 6 RB) + 4 RED + 4 GRN + 4UV

or


b) just "one" module fixture, total of 240 LED - each color Dimmable - modules "talk" each other
ratio of: 84 WHT (cool or neural?) + 84 BL (52 BL + 32 RB) + 24 RED + 24 GRN + 24UV


What is the best option?


based on your choice, what route should I take?

CAT4101 LED driver (how many per module) or LM3409HV
Arduino (how many per drive) or Hydra
power supply?


i tried to make some math on power supply (700mA for XPE, 1050mA for XPG) but didn't get it. got some information on the LEDs i'm planning to use but don't know how to use them:

these two must runnning @ 700mA, right?
Cree XT-E Royal Blue 3.5V
Cree XP-E Blue 3.5V

this one must runnning @ 1050mA?
Cree XP-G R5 Cool White 3.v

a just got this information about this three:
Osram 3W Red LED 2.15V @400mA
Violet UV 3W LED 3.5V @ 700mA
XP-E Green 3W LED 3.8V @ 1000mA


should I run all @700mA?

it seems there's a word caution with parallel string of LEDs, right? so i'm intend run them in series - what do you think?


as you guys know, I knwo nothing about this and will strictly follow your directions.


thanks a lot!


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