A friend of mine is starting a small closet grow in which the ventilation issues could be a problem. ventilation will be somewhat limited, so heat is a concern. He is about to purchase a light, but is unsure which one. He is sure of a HPS system, but wondered if 250 or 400 would be better. Its a small closet so he will still have plenty of lumens with a 250w, but 400 is obviously better. Our question is, how much of a heat difference will there be between the two bulbs? Is the 400 much hotter than the 250, or will there be a very small difference?
BiGGj18 Reviewed by BiGGj18 on . heat differences: 250w or 400w HPS? A friend of mine is starting a small closet grow in which the ventilation issues could be a problem. ventilation will be somewhat limited, so heat is a concern. He is about to purchase a light, but is unsure which one. He is sure of a HPS system, but wondered if 250 or 400 would be better. Its a small closet so he will still have plenty of lumens with a 250w, but 400 is obviously better. Our question is, how much of a heat difference will there be between the two bulbs? Is the 400 much Rating: 5