grow with just HPS

[rev.clone]

Is it possible to grow good greens with just a 400 watt HPS??

[Hick]

Absolutely

[Diseased Strain]

Sure, but you would get better with Mh/Hps.

[Renslipevol]

If I have a 250W MH and a 400w HPS, IT should be better to use both lights at the same time througout the lifecycle??

Thanks

[Hick]

Sure would ren', as long as temps are controlable. 650 watts is sufficient to cover around 12-13 sq ft. (4X3)