FeaturesFour modes of working time: 10,20,30,40 seconds.Working modes: Full power.The battery can be replaced.The optical fiber can be autoclaved to the high temperature and pressure.Automatic shut down function(120s no any operation).Specification:Input of Voltage :AC110-220V ,50-60Hz Output of Voltage: DC4.2V 1A Consumption Power :5W Power supply :Rechargeable Lithium battery Battery voltage and capacity :1500mAh Wave Length: 455-480mm Light intensity: 1200-1500MW/CM2 Weight: 145g Package Size :24x17.5x10.5cm