Place of Origin: China Model Number: C4021 Color Temperature(CCT): 3000k, 4000k, 5000K (Custom) Input Voltage(V): 90-260V Lamp Luminous Efficiency(lm/w): 155 Warranty(Year): 2-Year Color Rendering Index(Ra): 90 Usage: Garden Base Material: ABS Light Source: LED Lifespan (hours): 50000 Lamp holder: E27 Chip: bridgelux