3W COB and 1W LED on top, it's a work light and also a flashlight The pen has a magnet that can be rotated 180 degrees and attached to a metal object such as a metal box or car. Battery: Built-in 2 x 14500 lithium battery with USB to MICRO USB charging cable, working time 4-8 hours Charging time: approx. 2.5 hours 2 working modes, press the switch in the middle, 1LED head is on/COB is on/off Specification: Head Lumen: 65 COB Body Lumen: 180 Material: ABS LED: 3W COB + 1W top LED Size: 18.2 x 3.5 x 2 cm. Weight: 86.6g Color: red, orange, black, blue LED lamp life: over 110,000 hours Battery: Built-in 2 x 14500 (3.7V/800mA) rechargeable lithium battery. Charging method: Direct charging via USB cable The package includes: 1 * COB charging work light 1 * USB cable