Woods L1741 150-Watt High Pressure Sodium Dusk to Dawn Security Light with 12-Inch Acrylic Reflector, Powder Coated 12-Inch acrylic reflector to filter light Octagon shaped housing with decorative cooling fins in powder coating finish Heavy duty 3-point braced mounting arm included Complete with 150 watt lamp with 15000-Lumens of light output Dusk to dawn photocell means you won't have to install a switch - UL & CUL listed