LED color combo ratios

Flame_Angel · 08/03/2011, 06:20 PM

Is there a good, basic formula for determining a ratio of blue to white LEDs to achieve a certain color? For example, what ratio would give you a 14k, or a 20k color? I'm looking into retrofitting a 14g BioCube (assuming 12 LEDs), and I'd like to get into doing SPS in it. Would 20k be a good color for this, or would I be better off with a lower color number?

mordibv · 08/03/2011, 06:29 PM

2 to 1 ration RB to CW or NW for 20k .
If you use dimable ballasts color is not an issue . U can make them the color you want .

ndh78 · 08/20/2011, 06:46 PM

I just made my own fixture for my BC14 and used 12 cree rb and 6 cree cw. although I have them independently dimmable I think it is a good combo. I like 14k phoenix halides if that gives you an idea. Btw I am very impressed and will likely doe led builds for my bigger tanks now.

08/03/2011, 06:20 PM	#1
Flame_Angel Ready For Business Join Date: Jul 2010 Location: Sutton, NH Posts: 596	LED color combo ratios Is there a good, basic formula for determining a ratio of blue to white LEDs to achieve a certain color? For example, what ratio would give you a 14k, or a 20k color? I'm looking into retrofitting a 14g BioCube (assuming 12 LEDs), and I'd like to get into doing SPS in it. Would 20k be a good color for this, or would I be better off with a lower color number? __________________ Operation: Rebuild:

08/03/2011, 06:29 PM	#2
mordibv Registered Member Join Date: Feb 2002 Location: Western Mass Posts: 1,499	2 to 1 ration RB to CW or NW for 20k . If you use dimable ballasts color is not an issue . U can make them the color you want . __________________ It's hard to take advice from those who do not show the fruits of their labor . Current Tank Info: No tank ATM

08/20/2011, 06:46 PM	#3
ndh78 Registered Member Join Date: Aug 2008 Location: OK Posts: 85	I just made my own fixture for my BC14 and used 12 cree rb and 6 cree cw. although I have them independently dimmable I think it is a good combo. I like 14k phoenix halides if that gives you an idea. Btw I am very impressed and will likely doe led builds for my bigger tanks now. __________________ Tank Info Current Tank Info: 150g cube, 2x250 MH, 300 watts vho, neptune acIII, lifereef skimmer and calc reactor, 75g sump w/fuge

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