Latewood nead some help mate.Im helping out a freind he is growing in a space of 12ft x 19ft 11ft high currently he is using 4 x 1000 watt and a 600 watt but his temps are going out the window.hes venting with a RVK/LTI large fan 200mm 8" 750m³ / hour but still the temps going mad after 4 hours lights on the temp starts creeping up over 78 heading upwards of 80s themn he has to turn of the 600 and 1 x 1000 watt until the temps lower. i Know he could add a biger fan but the noise would then becom a problem cuse he is borderline with the noise of the exaust and inlet .He swithched carbon flilters to the new odorsok but that only helped a bit. im thingkin loose some light and get a mover but would be greatfull if you could add some expertise on this:thumbsup: for us. so they can get best use of this space and equipment .Do you think removing the reflectors and hanging the bulbs would be helpfull or detremental to this problems.thatnks in advance davey the postman