DLC ETL Certified; High efficiency SMD2835 LEDs (.5 watt chip); High precision constant current driver; High quality aluminum alloy with surface coating; Polycarbonate lens and adjustable light head angle; Lightweight and easy to install; 5 year warranty; Lifespan: 50,000 hours; Size: 4 feet and 8 feet; 40 watts (240 LEDs); 72 watts (480 LEDs); 110 Lumen/Watt; Color temperatures: 3000K, 5000K, 6500K; CRI >80; Beam angle: 120; IP40 Indoor rated; 100-277 VAC; Power factor >0.95; Operating Temp: -30~+45 (ideal 25); Humidity: 40-90{6d55178b3e7336a3a827301be29f48efccaf6f45256c31c5fdb98bc6df1eae8d}RH; VIEW PDF