Parameter: 1. Lamp bead mod: COB large floodlight 2. Lens material: ABS aluminum-plastic 3. Working gear: 4 gears (strong light/low light/red light/red light flashing) 4. Battery: 2 x 18650 lithium battery(not included) 5. Material: Aluminum alloy + ABS 6. Working voltage: 3.7V 7. Power supply mode: USB smart charging 8. Whether to adjust the focus: No 9. Product weight: 160 grams Features: 1. Lamp holder: a wide range of lamp holders, can adjust the angle and light source according to their own needs, simple operation and convenient use, and a larger work lighting area 2. Lamp beads: COB lamp beads, strong irradiation ability, wide irradiation range, long battery life 3. ABS material, light cap 4. Head switch: Tap to change the lighting mode and adjust the required light source accuraty 5. High- headlight bt: flexible light bt design, you can adjust the appropriate size according to your own head size 6. Red warning: the back of the battery compartment adopts the LED red warning light design, which is safer to use when going out 7. USB charging port: the rear charging port, connect to the power supply to charge intligently and quickly, extending battery life 8. Rear battery compartment: The rear rechargeable battery compartment is designed to install 1 or 2 18650 batteries, both of which can be used