Quote Originally Posted by RickyNewman
Do you know how much heat the lower watts give out? if any? it be great if i can find a compromise e.g. lower watt, but no heat and I'll just get a load of them?
I don't know about the heat differences between different types and makes of flourescent lighting, this is something worth investigating, it may be worth asking a question in the lighting section. What I do know is that 2x125 will put out the same heat as 1x250, but the 125's can get closer to the plant because the heat is more spread out.

Quote Originally Posted by RickyNewman
What would you do in this situation? How are you keeping your grow cool?
My first grows used 2x125w CFL's for flower, all I needed for extraction was a few CPU fans (I used one for extract, one for intake and a couple of small ones to move air around inside the closet.

For my current grow I am using a proper extraction fan and carbon filter (the smell when I stepped up to 2x250 increased to the point where I had to go this route) the fan moves 175m3/hour. On warm days my temps hit 85-90. If I could go back in time, I would have bought the next size up which moves 250m3/hour.

If I were you and I wanted to add more light, I would get proper extraction and a filter. Or go with what you have and see how things work out. If you get poor results, next time start with less plants or invest in some lighting and extraction, depending on your available budget.