LED Dusk to Dawn Security Barn Light Fixture Which Replaces 175 Watt or Less Mercury Vapor MVR175, 100 Watt or Less Metal Halide MH175 M175, and 100 Watt or Less High Pressure Sodium Lamps LU100 LU70 ENERGY SAVINGS: The estimate annual energy savings of $72 provides an excellent return on investment. The 45w Dusk to Dawn security LED security light fixture will pay for itself in a few short years with the monthly reduction in your electric bill alone. ULTRA LONG 60,000 HOUR LIFE: If the 45w Dusk to Dawn LED security light fixture is used only at night for 10 hours, it will continue to produce effective light for over 16 years. (10 hours a day, multiplied by 365 days equals 3650 hours of operation per year. 60,000 hours of fixture life divided by 3650 hours per year equals 16.4 years.) HEAVY DUTY COMPONENTS: The 45w Dusk to Dawn LED security light fixture is built using only tested and proven heavy duty brand name components. It contains a Sylvania driver to run the Philips LEDs, and a Tyco TE 8000 photocell switch. The die cast head and acrylic lens are built to take what the environment can dish out. INCLUDES A LONG LIFE PHOTOCELL: The photocell will automatically turn on your LED security lighting fixture at dusk and then turn it off again at dawn saving you even more energy. The included Tyco TE 8000 photocell is designed to last as long as your fixture for many years of trouble free use. LARGER COVERAGE AREA: More light equals more security and better visibility where it matters most. TRUE WHITE LIGHT: The light produced from LEDs is a pure white light that will render colors of the surrounding areas better and will not dull or wash out the landscape. INSTANT ON CAPABILITY: No more warm up time required. LEDs are instant on and instant off. SILENT OPERATION: No more annoying hums to disrupt and distract you from time spent outdoors. TROUBLE FREE OPERATION: . No more getting out on a ladder to change the ballasts or lamps.