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07-16-2011, 07:09 PM #3
Senior Member
Need Help With Wavelength and Spectrum, LED...
Blue is out of spec and in poor amount. White is pointless.
The purpose of an LED grow is to ONLY target the most efficient wavelengths. Different plants will have different requirements. Cannabis has at best determination 7 required specific wavelengths for maximum potential, two in the UV range, two in the blue, two in the red, and one in the IR.
Your ratio is following old NASA ratios - best advice is to quit following that outdated spec.
If you can't afford to make mistakes, my honest advice is to quit using LED, pick up an HPS or MH and some good ventilation equipment, and stick with that until you CAN afford to fail again. Go with what's known to work and play around on your own spare cash once it is accrued.
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