You should be fine with 132 watts in there.I think the mars is 80 bucks. It says true watts are 132. My main issue is heat I will have a 2x2 tent in a 2.25x8 space. Most times it will be open but for as many as 2 to 3 hours at a time it will be closed. If I can pull the .5 per watt off a girl I'd be very happy. But heat may be to great all together huh?