400w MH too hot for grow area

I bought a 400w light because I wanted as much light as possible but it burned my plants. I raised it up the highest it will go so I think they are ok now. I'm venilating the room with a fan. The walls are just thin cotton sheets with mylar on the inside and the back right area is completely open so I don't think air exchange is a problem. Should I have gone with a lower wattage? Better fan? The area is pretty tall and I cant grow anywhere taller. I'm really bummed so if anyone has suggestions that would be great.

sharpblade15 said:

I bought a 400w light because I wanted as much light as possible but it burned my plants. I raised it up the highest it will go so I think they are ok now. I'm venilating the room with a fan. Should I have gone with a lower wattage?

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no you just have to have a open door because mh run very hot and you will notice the difference, because my mh had my grow room in the 100`s so i bought a different kind of mh and it kept it in the 80`s and when you get a hps it will be way lower, like my room is at 75 degrees max with hps

You need to have your light as close as you can get it to your plants - otherwise you are just wasting money!

Yeah! They produce heat! You have to deal with that! Some kind of an "air-cooled hood" will suck the heat right out of an HID, either a Cool-tube or a hood vented with ducting.