Seedling stage hang the light 30 โ 32 inches above adjust dimmer as needed, some people hang lower and set the dimmer to 30% โ 50%
Vegetative stage hang light 26 โ 28 inches above the canopy adjust dimmer as needed, dimmer can be raised up to 75%
Flowering stage hang light 16 โ 18 inches above the canopy, set dimmer to max output 100%