There isn't any 15 watt light that is going to be enough to do anything with. Autos needs are no different as far as light goes (except they should get 18/6 their entire life never 12/12). I'm going to be buying myself some growledhydro Spectra LED lights in a week or 2. Check out the Irishboy grows over at 420magazine if you want to look at some LED lights that can perform.
