Specifications: 1) Saves 30 to 40 times of energy compared with that of incandescent lamps 2) The life time of our cold light lamp is 10 to 20 times longer than incandescent lamps 3) It is MCD cold light which will not produce heat. In such case, it can be specially used in mines 4) Voltage: 220V-240V 50Hz 5) Output power expenditure: 1.3W (under MCD 7W and 29MA)