Waterproof design makes it not easy to damage by rain to extend service life. High strength PC material makes it wear resistant and impact resistant.USB charging and long endurance design brings convenience to cycling. Compact and lightweight design makes it add no extra pressure to your bike.Made of high quality PC material, it is durable.The length of the product is 8.7cm, the width is 4cm.It is suitable for bike.Item Name: HeadlightsMaterial: PCCharging Mode: USBDischarging Time: 2-6hCharging Time: 1.5-2.5hWaterproof Rating: IPX6Battery: 1200mAh (Included)Features: Waterproof, Super Bright, Lightweight4 Modes: Daytime Cycling Light, Strong Light Daytime Cycling Light, Power Saving Daytime Cycling Light, FlashingSize Details: Size: 8.7cm x 4cm/3.43" x 1.57" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Headlight