most of the 520-720nm range can be generated by heating up your toaster-oven, or even a remote control for your tv, near-infrared is generated in massive quantities by most standard HID lamps; heck you can even buy film sensitive to most of that range. Your toaster oven will generate more lumens in that red range than any led, not to mention any HPS would blow the toaster-oven away.
4x5 Reviewed by 4x5 on . What is the light spectrum curve absorbed by cannabis Need a light spectrum absorbtion curve for cannabis, need it for my diy led lighting with 100% PAR efficency. I think it will be intresting for us to see how the plant will grow and etc... Rating: 5