Brand new , Brightness COB LED chips Ultra long lasting design Low power consumption, save whole lot of energy Suit for back lighting and others Meterial: Aluminum Alloy plate COB Led Input Voltage: DC 3V-4V Power: 15W Luminous flux: 300LM Light Color: Cold White (6000-6500K) Color Rendering Index(Ra): 60-80 Operating Temperature: 20-60°C Life: >50000Hr