I've had two of them, and like them :thumbsup: ... you do lose a tiny bit of lumens, when going thru the tempered glass, but the safety concerns greatly outweigh the slight loss ... the fans tend to work better while sucking the hot air out, but, be sure your fan can handle running hot, all the time ... I use a Home Depot furnace duct fan on mine, to extract the heat ... watch your eyes around high-pressure lamps, etc., too ... be safe :smokin: