oh, im down in florida. not much of a winter but its enough to make them flower super early. cant wait til summer though. i want to have a mini gorilla crop or somthing. i just put a nail in my roof and hung one light, put the little ones under that one, moved another light up as well and raised up one of the bigger ones. so the light is about 3 er four inchs away. my tips are browning im not sure if thats from to much superthrive or what because i can touch my bulbs and there is no heat.