Specifications: 1) Voltage: 110V-130V or 220V-240V 2) Frequency: 50 / 60Hz 3) Lamp Base Type: B22, E27, E26 4) Color Temp: 2,700K-6, 400K 5) Life time: 6) 8,000H(Under temperature circumstances 25oC); 6,000H(temperature circumstances 40oC) 7) Switching Cycle: 50,000 times (1 min on/ 3min off) 8) Type: 2U, 3U,4U,spiral lamp,Mini Night Lamp