Matthew7
Active Member
- Joined
- Feb 19, 2010
- Messages
- 42
- Reaction score
- 21
I am in the process of buying a combo MH and HPS (400 or 600w) to grow a few plants in a hydro system. I've seen many systems with a 'Cool Tube' style reflector, but I don't think they include the exhaust fan for the tube (or at least no mention of it) -So my question is are cool tubes worth the extra money? Are they useless without the exhaust fan, or could it even shorten bulb life if I run without the exhaust fan, or are they simply a heat soak device that allows most of the lumen through while protecting plants from excess heat? Thank you for any advice you may be able to give me.
:holysheep:
:holysheep: