Description:Stretchable: The LED fishing headlamp is made of nylon and plastic, stretchable and comfortable to wear. Durable: 3 modes the work light is suitable for a variety of environments, not easy to damage, easy to wash.3 design modes: the portable spotlight has 3 control modes: strong light, low light, strobe light, suitable for use in a variety of situations. Stage: The outdoor headband can be used for lighting, night riding, camping, lighting searching, exploration and so on, portable and convenient. Waterproof & Rechargeable Battery: The night warning flashlight is IPX4 waterproof design, built-in lithium polymer battery, has long endurance ability. Specification: Size: section diameter: 27cm. Material: Nylon + Plastic. Color: show as pictures. Power supply: built-in lithium polymer battery. Endurance: 4 hours under strong light, 8 hours under low light. Voltage: 3.7V-4.2V. Lamp beads: COB luminous strip. Shooting distance: 0-50m. Waterproof: IPX4. Power: 5W Brightness: 350 lumens (theoretical). Note:There may be a little color distortion due to the different resolutions of your computer. There may be a slight error due to different manual measurements. Package Included:1 x Reflector.1 x USB Cable.