Special Feature Waterproof Color Black Plug Type Battery Powered Lightsource Type LED Material Silicone< /p> Components included Batteries included Parameters: Bulb: COB Power: 20W Operating time: 4 - 6 hours Charging time: 4 - 6 hours Function: Strong weak red blue flash Battery: 3*18650 USB rechargeable Material: ABS aluminum alloy Weight: 238g Color: Black Product Features: 1. COB lamp beads: large area illumination is not dazzling, wide irradiation range, long service life; 2. Non-slip switch: soft material, comfortable hand feeling, sensitive pressure, light touch to transform different gears, the head can adjust the angle up and down; 3. Large-area reflective cup: use the large-area reflective cup, the reflection rate is good, and the brightness is higher; 5. Headlamp band: elastic lamp band design, can adjust the appropriate size according to your own head size; 6. Alternative red and blue light warning: designed with LED red and blue light warning lamp, it is more convenient to use outdoors; 7. USB charging hole: With a standard USB charging hole, it can be charged intelligently and quickly by connecting the power supply; 8. Battery Compartment: Designed with 3 rechargeable battery compartments, three 18650 batteries can be installed, long life, 1 or two can be used.