its mylar so the ag doesn't absorb light and heat up my rez temp. rez temp is sitting at 27c which is a bit more than i would like. i would like it at around 21c. my air temps are at 28c with the cupboard door open with a 28w fan blowing in and a 50 w blowing out. i want to reduce that as well to low 20s.
If you just use the ag lights for veg u won't have to worry about rez temps. You only really need extra lights for flowering and then your plants should be so full it should be a non issue. Your rez temps are going up because of air temp not lights on the ag. And you have time to stress a grow tent it's also really only needed during flowering I'm getting either a home box sm or xs I'm buying the extra lights this week so I can get an idea of the size I need. Hopefully I helped and/or given you some thoughts to ponder with. Either way I'm subscribed and best of luck to you.
yeah the extra lights are cfls. no they do not sell the upgrade kit in the uk. i could probably get it off ebay but i'm not that desperate.
hi gorlax. i could have used a smaller fan but i had bought that one at the start for an intake on my box but since i'm now using a tent it was just laying around, so i thought i'd put it to use. it's a mains powered one so need to mess around with a dc computer fan and adapter. i've found these 125 watters give off alot of heat. i don't know if they differ from the one you had or if it's because i'm using two. i've not tried using a single but seeing as how i will be using 2 red spec for flowing i thought i'd build a reflector to hold two.
I like the lights cooling system. I need to think of something like that 
