What Light for my tent

Hello boys so I just bought my grow tent. It's 5ft(tall)x3ft(wide)x20inch(deep). I'm having a hard time deciding between a 250w cool tube or a 400w . I am only going to Flower 2-3 plants at a time. Will 250w be enought wattage? I don't want to overkill and get 400w.


Thanks for the help fellers. Happy Friday.

For a 3 x 3 I use a 400 veg and 600 flower. I'd get a 400 but you have heat issues to deal with.

Oh and happy Friday too..load em up and sleep in.

if you're gonna use a cool tube you'll be fine with a 400. more light in, more bud out