a/c

aha 27c=80.6 f. my a/c is 10000 btu.now is 77 in the room and 80.6 in the closet.
30sqm= 98.5sqfeet 0.75sqm=almost 2.5 sqfeet.

okay part of ur problem is u dont need a.c ...especially 10,000btu for 1 150w lamp..thats out of hand..u need an extracting fan.. maybe not even 6'' because ur lamps small. go with a active air hydrofarm 4in fan..and vent it out ur window ..or attic if u have 1 above closet..pull air with it away from ur lamp..via 4'' dryer flex ducting..theres absolutly no reason u need a/c for a 150 watter..ur pc fans just not working..i run 10,000btu for 2,000w+ hps..3 lamps..i know people runnin 12-20,000btu..for 10 lamp systems..u should have that a/c in there bro..take it out get the appropriate exhaust and intake..and itll slice the potential a/c electric bill in half