Yeah thats not too bad, but for 4 its £240 then any wxtras i may need duct, support more work and have little time i try my best to go over once a day for an hour or two at the best, they already sprouted too.. would it be best to change asap or better when all the lights are on cause im using only one right now and the temp in the tent is perfect 25-26 average but can imagine how hot it would get when all 3 are on 600, might have to bring in my 4th light if most of the plants turn out well, dont think even if i have fan on full sucking the hot air out it will make a hude difference ??? So might defo have to get some hoods... stuck on what would be best option