Lamp Wattage and Distance Grow Lights
November 10, 2018
The wattage of your lamp dictates the distance from plants. Lamps that are 150W are not very hot and can be placed within 6-8" of your plants, while 600W lamps need to be kept at a distance of 18-24".
My young naranjilla (Solanum quitoense) transplants, and Brugmansia cuttings, are growing about 6-8” below a 4-lamp T5 fluorescent fixture. As they get taller, they’ll need to be moved further away from the lamps or their foliage will burn.