I have a hydroponic setup in a box
26inch deep 4feet wide 51/2feet tall

i have a 600w hps/MH setup in this box i have a 270cfm CANN fan hooked up to this hood directly just the hood and ive burned up both of my bulbs now is this not enough air flow i only have a 4inch inline hole
120mmpc fan inside the box
4inch inline fan

the box is temp is
light on 74-79
its gets kinda cold with light off 65-70

my plants have gone threw alot of rough stages they were just starting to look healthy almost ready for budding now my HPS is burnt out and im running my flourescents now
do you have any idea why my lights would burn up so much
drewski Reviewed by drewski on . my box light burning out alot I have a hydroponic setup in a box 26inch deep 4feet wide 51/2feet tall i have a 600w hps/MH setup in this box i have a 270cfm CANN fan hooked up to this hood directly just the hood and ive burned up both of my bulbs now is this not enough air flow i only have a 4inch inline hole 120mmpc fan inside the box 4inch inline fan the box is temp is light on 74-79 its gets kinda cold with light off 65-70 Rating: 5