This security light will deliver the light coverage area you are looking for. With the Dusk-to-Dawn feature there will be no wasted light during daylight hours when light is not needed. Light coverage area up 10,400 square-Feet will be plentiful enough for large areas. This fixture has Heath/Zenith"s seal of approval and will operate in the toughest of conditions from -13-Degree to over 120-Degree -Degrees F.