okay, so i'm tired of this heat, i want it cooler in my tent. it is currently 72* outside, with my window open, 78 in my room, and 90 in the tent. it is consistantly about 10 degrees warmer in the tent than indoor room temp, with my 250 watt HPS. it is 2 in the morning, so imagine daytime temps on a hot day. i have a 4" inline fan and a carbon filter in my 20" x 36" x 5' space. the fan is on a speed controller, and it helps with sound, but having it on low or high has no effect on removing the heat. frozen gallon jugs of water helps, by like a degree, so count that out. exhaust is vented under the house, and the ballast is outside the closet, but directly next to it. i just switched the lights over to be on at night, but now night time(our daytime) temps for the ladies are like 73-90*(its getting cooler soon), with daytime(our nightime) being 90 because of the light. i'm hoping i can run a 6" cool tube, euro reflector, or easycool 6 reflector on my 4" vortex with the correct fitting. which would you personally choose? my question is, will i be losing any efficiency? and most importantly, will it remove all the heat? or will it still raise the temp a degree or 2? or 6? it gets chilly here, i would like to encourage some indoor purp if possible in the upcoming months. i dont want my light to be keeping them too hot. thank you all so much.