From Sunset to Sunrise This LED outdoor light operates automatically using an advanced photocell, activating at night and turning off at sunrise. By reducing unnecessary power use caused by voltage fluctuations, it optimizes energy consumption. The 40W LED light replaces a 400W incandescent bulb, delivering substantial savings of up to $1980 in energy costs over time. Outstanding Illumination Quality Designed to perform reliably in harsh environments, this LED barn light features an IP65 waterproof rating, safeguarding it against rain, snow, and dirt. Its robust weather resistance guarantees consistent, high-quality lighting for any outdoor application, regardless of the conditions. Built to Last The integrated aluminum cooling fins ensure excellent heat dissipation, allowing the light to maintain stable performance over time. Constructed with a corrosion-resistant, rustproof, dark gray aluminum housing, the fixture remains durable and color-fresh after years of use, with a life expectancy of up to 50,000 hours. Reliable and Versatile Application With a broad operating voltage range of AC110-277V, this LED barn light suits a variety of spaces, such as barns, farms, garages, backyards, parking lots, and alleyways. Certified by ETL and FCC, it adheres to rigorous standards for safety, reliability, and electromagnetic compatibility, making it a suitable choice for both residential and commercial purposes. Important Note The included accessories are specifically designed for wall-mounted installations. Specifications Wattage: 40W Voltage: 110-277V CCT: 3000K warm white Luminous flux: 4200lm Lifespan: 50,000hrs LED QTY: 80 pcs Waterproof rating: IP65 waterproof Dimmable: no Working temp: -4°F-104°F