There are seven 15-watt bulbs, each of which emits the light equivalent of an 80 watt incandescent bulb.
So....you'd been blowing a hole through the ol' ozone with 560 Watts worth of light so your dog can go pee in the Summertime? There are AM radio stations out there (playing Barry Manilow, no doubt) that don't have that much power at night. Might as well install a GE space-heater right next to Greenland! The AlGore Commissar will be dropping by soon....
;^)