Item features:BrandUnbrandedLithium battery voltage: DC3.7VModel: L800ALithium battery capacity: 1500mAhOptical output wavelength: 420-480nmRecommended Refinements: Dental LED Curing LightOutput light intensity: 1200-1400mw/cm2Light type: LEDInput voltage: 100-240V 50-60HZChanger output: DC4.2V 1ACharacteristics:On/off switch:1. Turn the LED Blue-ray output on or off2.Can run the machineTime setting: 5s, 10s, 15s, 20s,25s,30s,35s,40sTechnically:Changer input: 110V-240VAC 50-60HzThe changer output: DC4.2V 1ALithium battery voltage: DC3.7VLithium battery capacity: 1500mAhOptical output wavelength: 420-480nmOutput light intensity: 1200-1400mw/cm2Scope of delivery:1 x polymerization lamp1 x battery1 x charger1 x charging socket