Quote Originally Posted by GanjaGreenKing
I have a 5x5 grow space and i was going to get an enhanced 400 W HPS bulb because i heard it can support veg and flower. I was wondering
1. Is this bulb a good choice?
2. how many of these bulbs do i have to order
3. what hood should i use
4. do i even have to use a hood can i just put into the ventilation system like so: GROWFAQ fouth pic from top. And how do i do this?
5. Can one 4" inline duct fan cool a 400 W bulb(s)?
6. can i use something other than expensive inlines to move air thru the vent system??
Well well, let get on this case...
5x5 is that a cabinet or is it in a room ?
1- A 400w HPS should be more than enough for the space you have.
2- Get 2 just to be sure, if one die on you can change it ASAP.
3- Well the hood depends on the way you want to ventillate down the place...
4- This is actually not really an hood, it's called a cool tube and usually they are 6" so the 4" inline may not be a good idea
5- As I told you before... But there is a solution, not too expensive, 120mm computer fans can be used for the ventillation system. (there some info on the forum)
6- Usually you don't need an active intake for a cabinet... The exhaust will get the air in.

There a lot of these questions answer on this forum, search a little and you should have must of the answers you need... If you can't find it, we are going to help ya for sure !