Simple to Operate Clear display, simple function and easy to use. 10 Second Fast Cure Use high power 5W LED, can cure composites over 3mm in 10 sec. Never Shutdown Within Continuous Use Built-in smart heat-management system, will not over-heat with continuous use.   Combo of Cordless & Cord.   Types When the battery power is exhausted, plug-in the power  supply and use it immediately.

Specifications: Power supply Input: AC100~240V, 50/60Hz, Output: DC 5V/2A Mini USB jack Battery 3.7V, 800mAh