Is 1000W HPS light much hotter than the 400W HPS. I'm trying to upgrade my system without increasing the temperature in the grow room too much. I have an AC in there that keeps the temp at 78F with 400W HPS system.
i recently went from a 400w in my room to the 1000w. way brighter, but the heat stays in the low 80s in the canopy and mid to low 70s in the reservoirs. i added a window AC to the room as well. that with the house AC and circulation fans seems to keep the temps stable. you just have to work with what ya got