Best hid for 2x3 area

I have to my disposal a 2 ft wide by 5 ft tall closet. As of now I'm growing cfl. But will be making the switch to hps in the future. What's the best size hps/mh bulb for that space? I am hoping 1 600 watt will be perfect so I can do a SOG and a really nice scrog. And since I have all these CFLS I will be using them for side lighting so what's the best size for my 2x5 area

Maybe a 400w.I thought 600w for 3x3x6 or more.but I could be wrong

400 watt are quite cheap too. I might just go with a 400 watt.

400 is what I have in a 3x3 and I need to dim it. good luck!

400W would be perfect for 2x3 area. Anything higher would be overkill.

400W could be considered overkill for 6sqft too, as that's 66.66W/sqft, but are you going to put in a 300W hps?.