LED growing- An instructional grow log

[physicsnole]

Check out the NEW FULL SPECTRUM LED GROW LIGHT it covers the same light growing spectrum as a HPS Lamp

This is exactly what we are trying to avoid. The spectrum from a HPS light is inefficient. With LED's we can choose the best wavelengths with the greatest efficiency, 420nm, 470nm, 640nm, 660nm, 730nm, and UV-B.