Advanced Light-Curing Machine with Intelligent Features This professional light-curing machine is designed for efficiency and user convenience, featuring adjustable curing times with a visual countdown display for precise control. Key Features & Operation: Smart Charging Dock: The unit is charged via a dedicated stand with clear status indicators: a flashing LED during charging and a steady light when the battery is full. Audible & Visual Timer: During operation, an audible beep sounds every 5 seconds while the display shows the remaining curing time. Power-Saving Auto-Shutoff: To conserve battery, the device automatically powers down after 120 seconds of inactivity in standby mode. Simply press any key to turn it back on. Specification: Battery Voltage: 3.7V Package: 250X150X60mm Gross Weight: 0.43Kg Lnput Voltage: 110V-240VAC,50-60Hz Solidify time and depth: 5s/3mm Output Voltage: DC4.2V Battery: Lithium-ion battery Light wavelength: 420-480nm Capability of Battery: 2200mAh Lightintensity: 1200-2000mw/cm2