Quote Originally Posted by intheclouds
The 42 is what it uses, It puts out the same light as a 150. So what's your problem?? The output is what you want, And that is 150!!!
42 watts is the only relivant number. 150 watts is in comparing to incandescent lights, which nobody uses for growing. That number means absolutely nothing. 42 watts is what you need to know when figuring out what your yeild will be, how much heat it creates, how much it will cost to run, and how it compares to other growers. 150 watts does not mean anything at all. The actual output is measured in lumens, not watts.