Hey all.. I have a small cab micro grow.. I'm using a t5 96 watt total 4 bulb fixture.. attached is pic of grow space..the long silver box thing between the two plants is an ac vent.. so I do have ac running into the cab.. temps stay between 74 to 80 with lights on.. I have a pair of 175 watt mh ballasts.. and two really small reflectors..(bulbs are double ended halides).. I wanted to take the ballast.. get a mogul socket.. and place it into a cool tube and use my 4 in velocity fan to vent the space and vent the cool tube... I was curious.. 1 mh should be ok?.. I'm not sure if it running two 175w mh in one cool tube, if I can get the temps that are needed .. I could add another pc 120 mm fan and carbon filter to vent/move more air through it..my goal is to use a mh.(6500k) for veg.. and get a hps conversion bulb for flowering..any thoughts, knowledge would be great... also.. can I run a 150w mh on a 175w ballast.. without issues?.. the 150s are easier to find locally, for growing.. double ended mh in a grow spectrum seem to be a little more difficult to find... thanks again..

