I agree w/
@Rhyce Saroni . open the bottom vents for a passive air intke. Also, Before i sold it, my mars hydro 600w raised my tent temp to ridiculous heights . 97F sometimes. it is a smaller space then yours and inside of a closet but still unacceptable. You may not be at the leisure but get better lights bro. With the LED market still kinda being the "new" technology for growers, trust me when I say, you get what you pay for. After the research ive done as far as par, mogouels?? i cant think of the word right now but those two are the measures you wanna know unlike wattage which Mars hydro advertises. The light I picked up even has youtube videos demonstrating the difference between top brand leds. My 150w 130 total wattage led outshines the 600w I had which was 284 total wattage across the board. Not only is the par two times higher, my height has not went above 76F and thats because it's hot where i am. On cold days it has been 68F. I will be adding another one on my next grow because I wanna try DWC. Without getting too far off into a rant, since you have the space. Look up "swamp cooler". People use it to keep the temps down. Havent used it, just heard it through the grapevine. Also, If you go on ebay, look up oscillating fans and search by lowest cost. The cheapest one you see, if you buy multiple ones, ask the seller for a deal. I did, shaved off a few dollars. Keep me posted. As always, good vibes brudduh
