Exactly what tempature does a 400watt HPS bulb reach? and how many cfm's does a extractor fan need to be to assist removing this amount of heat from a 8x3x1 closed room?
Zero Revolt Reviewed by Zero Revolt on . Awnser This Question Win A Cookie =) Exactly what tempature does a 400watt HPS bulb reach? and how many cfm's does a extractor fan need to be to assist removing this amount of heat from a 8x3x1 closed room? Rating: 5