Quote Originally Posted by GanjaGreenKing
on second thought maybe i could get 2 6in fans
Well the web site don't give out the cfm for this fan, so it's not possible to know if you really need one or two... But for the space you are using to grow, one should maybe ok if you don't use too much duct.

The web site claim that the bulb is good for the veg and flower... I guess it's possible but it's always better to change from one to another as the ballast have the option !

Get the ballast and the light, lightproof the cabinet, make holes for intake/exhast, install 1 inline duct fan and try the setup to see the temps, if it's too high get yourself another light.

You might also want to buy a carbon filter, the plant will get smelly as they flower.
LuciferN Reviewed by LuciferN on . newb with lighting questions 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 Rating: 5