if you went by the high number my 350cfl grow would be a 1050cfl grow and my yeild of 4oz would not be very good for that many watts. that is because it is only 350watts!!!!!!! everyone needs to totally ignore the high number. noone will be able to answer questions properly if people go by the high number when describing there set up. IT IS A 42WATT CFL NOT A 150WATT CFL!!!!!!!!!