cannacrazy
Active Member
My 1,000 watt are 18" from the canopy, the 600 are 12". As harvest time comes closer, in the final weeks I inch them as close as I can get them without bleaching or burning. Usually for the 1,000 around 12-16". You have to be more attentive to your plants the closer the light is. A few inches could be the difference between a big, potent and tasty harvest and a scraggly, struggling or bleached harvest. As long as you keep your lights air cooled and have good ventilation and air flow you can move the lights a little closer and closer until the plants tell you to back off. Co2 is good for high temps and more light. With Co2 you can get much closer and add 15% to your harvest weight possibly.