High-quality materials: Made of high-quality PC and ABS materials, sturdy and durable. Suitable for handlebars with a pipe diameter of 12-32 mm. Mountain bike headlights can be used to improve the safety of cycling at night.Light mode and anti-glare design: Our front bike light has 3 light modes: full bright mode, half bright mode, and blinking mode. You can select the desired mode through the large switch above the bicycle light according to the road environment.The LED bike light set uses optical technology for light beam distribution. The bike light helps prevent glare for oncoming pedestrians or vehicles, providing improved visibility and safety.USB charging: Charges via USB interface, fast and convenient, compatible with computers, mobile phones, and power banks.Waterproof: The bicycle waterproof lamp can withstand various weather conditions, including heavy rain, without affecting performance. Suitable for outdoor activities such as camping, hiking, and biking.Material: PC+ABS Color: Black Power source: 800 mAh Li-Poly battery Size: 7.5x3x2 cm Net weight: 40 g Mounting location: Bicycle seat post Bulb type: LED Suitable tube diameter: 12-32 mm Water-resistant Runtime: 3 hours (full brightness), 5 hours (half brightness), 12 hours (flashing) Mode: 3 modes