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IVE GOT PROF that you need a WHITE, blue and red leds to grow. if you look at the two charts below you can see what wavelength each colour of led will produce and the other shows what chemicals are produced at each wavelength. I ALSO BELIEVE THIS PROFS IT WORkS. screaming_dream@hotmail.com

Well ive done some research into led growing and if you get gu10 par 18 leds they emit 20w each and theres ment to be 1000w of lighting to every 130w of led. The blue produce 465-475 and the red produce 620-630 nm, Thats what ive read anyway, screaming_dream@hotmail.com