Def go with Atleast a 400 watt. If space isn't an ISSUE go with a 1000 watt. The 150 watt is just to small in my opinion. Hope that helps.
he didn't ask if he should go with a higher wattage light.... do people even read posts anymore?
150 Watt will support 2 plants, beware though that you might have issues with it penetrating the lower canopy. So try to do LST or SCROG grow.
For my setup, i have 150 Watt HPS up top and a few CFL lights sitting at the bottom for the lower part of the plant
150 Watt is for 2 plants in a very small 2x2 type of area. Not something you want for 4 plants. Why? Because it will not penetrate to the lower leafs, that is unless you use CFLs along with the 150 Watt
does anyone know if the sun system 150 hps is any good
and how many plants can it support can it grow 4 2 1/2 ft plants veg 2 months then flower?
i saw it at my hydro store and i want to get it because its 150 watt is it good