Food - Merical Growha i dont think it works like that, there is no magic formula to equate watts per bud, the more watts the more bud, but bud depends on a host of other things ie- nutes, soil, strain, and HID lights will give more bud per watt
ok cool thanks for your helpideal everything, people say 1 g a watt. with simple little closet operations, .5 to .75 g /watt is nice to aim for