this is what i have under 150w atm, i started to feed her with foxfarm after the 3rd week of veg. and now she is on 11th day of flowering, im thinking to use the same technique as i used for this, lst. here are some pictures:150 for two should be enough just make sure you use reflective material and also depends on the size of grow room and how big you want your plants to get I have about 15feet to 17feet in my closet whit two and a 250hps and using fox farm nutes hope this info is usefull