i grow with a 250, but I supplement it with another 100 watts of CFL power. I'm using this on a 2 plant scrog.

You will probably want more light. You might just want a 400, it's not that much more.
Cornelius Reviewed by Cornelius on . 250 watt HPS.... is a 250 watt hps enough for 4 plants and how long should i veg. until i switch to 12/12???????:rastasmoke: Rating: 5