The Nitecore UM20 Intelligent Digi Charger for 18650 18490 14350 17670 17500 Battery is designed specifically for use with LED lights. Compact and lightweight though， it is built with integrated power management system to deliver stable performance. Auto input power detection and smart power distribution ensure constant output. LCD screen displays real-time charging status for convenience. And it supports data transfer via USB cable. Made of flame retardant materials， it is highly reliable for long-lasting use. With such high quality and affordable price， it surely is your ideal choice!                                    Features             Designed specifically for use with LED lights<br> Compact and lightweight<br> Built with integrated power management system<br> Auto input power detection and smart power distribution<br> LCD screen displays real-time charging status<br> Support data transfer via USB cable<br> Made of flame retardant materials， highly reliable for long-lasting use <br>                                                            Specifications            Input Voltage     5 V    <br>Output Voltage     4.2 V    <br>Current     1000/500 mA    <br>Working Temperature     30 ℃    <br>Model     UM20     <br>Cable Length     39.37" / 100cm    <br>Dimensions     (3.94 x 24.41 x 1.1)" / (10 x 62 x 2.8)cm (L x W x H)    <br>Weight     4.23oz / 120g       <br>                                                             Package Includes            1 x Charger1 x USB Cable