How many Watts of HPS for This closet?

I have a closet and theres a total of 93 Watts of CFL's.










The space is 1' W 3'H 1'D.

Any suggestions for a HPS that is perfect for 4 plants? something small but power full.

I wouldn't put anything higher than a 70 watt hps.

A 50 W would be perfect.

im using a 70 watt for 2 small plants (1st time) very successful bro's.

I use a 150 watt but im growing 5 plants.

get a 250 watter and a 5inch extraction fan, thats what i'm running in a small area.