If it is a photo sensing security light you are using, you might check the electrical tape or whatever it is you put over the photocell eye. If that eye sees light it thinks dawn is here and turns the light off.
pastor420 Reviewed by pastor420 on . 85w CFL shuts off.. my friend is doing a grow with 30w and 85w cfl's...they are on 18-6..he wakes up and his 85w is off...is this due to overheating?... Rating: 5