In that size box, assuming your pots would be about a foot tall, you'll probably want to veg to under a foot then flower. That 120w panel would do just fine in that space, you're working in an area about half the size of my NFT setup.

If you do wish to add light, I would suggest you obtain 4 of those single-strip Hydrofarm T5HO lights, where you can daisy-chain them from a single power cord and run them inline, and light up all four corners.
khyberkitsune Reviewed by khyberkitsune on . Brand new grow cab!!, lighting question.PICTURES INSIDE As of now, I have a 120w LED for my vegging stage. I don't really want to use it for flowering so I was wondering what you guys think I should use for my flowering lighting. There are 2 fans(both 4 1/2"x 4 1/2"), one bringing air in and one bringing the air out and my house is usually about 70°. My options are either a small 150-250w HPS(not sure if the ventilation I have in my cab as of now is sufficient to keep the box cool enough but correct me if i'm wrong because I would love to use an Rating: 5