This Light made of Aluminum Alloy which durable and safe. Its waterproof surface design which you can use in rainny day. And its Aluminum alloy body built to be extremely durable, waterproof, and indestructible, even on the toughest terrains. Feature - Color: As shown. - Material: Aluminum Alloy. - Size: 10x4x2.5cm. - Working voltage: 3.7V. - Bead color temperature: 7500K. - Charging voltage: 5V/1A. - Can be used as an flashlight, keep it inside your car, basement, attic, and kit. - Use it when you’re running, jogging, hiking, camping, walking your dog, cycling, changing a tire, night time family/kids activities, power outage and MORE! Enjoy enhanced visibility and comfort you'll and secure at any time of the day. - New type quick-release bike mount for easy and secure adjustment of the light direction. - Life waterproof, key and USB charging interface covered with expanded rubber cover, and waterproof, but does not support diving, wipe clean , dry place is suitable for storage - When the blue light is on, into the induction mode,and with the change of brightness around the light will change. - of charging methods: The computer's USB port can be used for charging, and it can also be charged by home charger or charging treasure, but the voltage of the charger can't 5V (the charging equipment does not contain). Excessive voltage will damage the lamp. Package list: 1