You shouldn’t put HPS grow lights above your plants by more than 30 дюймы (76 см). Medium-sized lights like 600w’s can be placed about 25″ (64см) above the plants without losing vigor, while smaller 400w lights can only be placed about 20″ (~51cm) away from the plants.
БОЛЕЕ: 7 Причины переключаться с HPS на светодиодные светильники в 2023



