LED SMD 4FT T8 Specifications Model No.: RM-SF10-12-W15 Light Color: WHITE Working Voltage: AC110 / AC277 Dimensions (mm)   Features Item Parameter range Power 15W LED quantity 276 PCS Illumination color White Color Temperature 3000K-6500K (Ra) =81% Lifespan >40000 Hours Luminous flux 1248lm Beam Angle 120° Material PC tube, PC groove, aluminum tube hat Net Weight 0.24KG Gross Weight 3.52KG(6pcs) Packing Size 127.5*170*110MM (A type cartons) Packing Mode 6pcs/1pt (double deck EPE with cover) Technical Requirements Item Units Parameter range Working environment   -40°C ~ 60°C Humidity   =95% Storage Conditions   -40°C ~ 80°C Rated Voltage V AC277 / AC220V / AC110V 50hz/60hz Input current A 0.04 Thermal shutdown Hysteresis   75°C IP Rate   IP20 CLASS 1 LED Parameters Model Chip LED brightness LED Voltage LED view angle PW-5H4WC 17MIL 5.5lm 3.0-3.3V 2 1/2 120° Product Features: We utilize LED light source technology with a special circuitry design and constant current driver technology, saving 80% more energy and giving our lights super brightness and high color indexes. The product has a rated lifespan of over 40000 hours. Applications: Office, super-market, residential use etc.. Attention: Make sure the bulb matches your supplied voltage. Please read the installation instructions carefully before using the product.