I'm currently using a Giixer 1000W LED grow light. The lamp has two switches. One for "blue" light ay 450nm and one for "red" at 600-700nm. I am currently in week one of the vegetative stage. I have both switches on for "full spectrum" lighting. Blue or Red switch alone?
I always have both switched on, from day one to harvest and believe the plants grow much better in the veg stage with both lights on.
Hope this helps,.........
Organoman.
hey there daddo, you can keep the blue for veg, then switch both on for flowering , honestly you can get away with having them both on for the whole grow, wont do any harm, not really. Hope this helps ! š