Quote:
Originally Posted by cheesehead
I think that 80 XML's will be overkill. You'll be at 400 - 500 PAR. There are some spreadsheets here for figuring out how many LED's and how much light, Hoppy's set one up.
I'm looking to do a similar build but am looking at ~20 XML's with a similar mix - about 10-15 violet, a few green, and about five red for full spectrum. About 100 PAR max with the lights 36 inches off the substrate, with the ability to turn the light down.
|
thats why i needed help but only 60 (still prolly to much) xm-ls as daylight midday
i heard that greens and blue do nothing but when i looked at par charts chlorophyll a takes 450ish nm and 660 ish while chlor b takes 430ish and 640ish with greens and yellows rather nonexistent this confused me badly thats why i wanted help
i hope this helps you as well