Heath/Zenith"s SL-5403 offers up to 5,400 square-Feet of light coverage to suit your needs. It"s slender design will blend in with it"s surroundings and then deliver high light output when needed. The SL-5403 packs intelligence called Dusk-to-Dawn, that directs the light to come on only when light is needed by sensing when it is dark enough outside to turn on.