I had a strange Idea today, what if i get a piece of tubing put one end in the closet where Im growing near the light and put the other end outside attached to one of those rechargeable portable blowers for air mattresses to the end. I think his is a pretty interesting Idea, but it only works while its still cold outside, you could probably do it during the summer substituting your airconditioned room for the outside. Side note: you should also have a fan in the room where youre growing to circulate the air. Plus those air pumps are sort of noisy but you could run it afew minutes a few times a day. As for a good operating temp, id just be simple and say that if the room feels like its a 300 degree oven then its probably too hot, and needs some sort of cooling apparatus.
Cell54 Reviewed by Cell54 on . HID bulb cooling requirements Hello guys (and girls)!, Hope you're all doing good. :) I've been having this in the back of my head for some weeks now, and I must share and get your much desired input. SUBJECT: Cooling HID Bulbs (Metal Halide MH, and High Pressure Sodium HPS) As many of you know, there are many ways to run HID bulbs in your setup. Out in the open over the plants (with, or without a reflector), inside a hood, inside a sealed-hood, or with a cool tube. Many more variations to go around, but I think Rating: 5