Description: As a must-have for any bike, our high brightness bike light has multiple lighting modes. It can be used as an emergency flashlight. Only takes 4 hours to fully charge, high-capacity rechargeable battery with an extra-long run time. Designed with many excellent characteristics, such as waterproof, high durability, and weather resistance, our bike light it is powerful enough to withstand all kinds of terrible weather. Ideal for any bike. The bicycle light can also serve as a power bank to charge your phone in emergency. Bike light with battery display, so you can know your battery level at any time, make sure you don't lose light when riding at night suddenly. The length of this product is 10.4cm, the width is 4.7cm and the height is 2.9cm. This product is perfectly suitable for road bike, mountain bike, bicycle, and so on. Item Name: Bike Front Headlight Material: ABS Battery Capacity: 4000mAh Working Time: Strong Light: 8h Weak Light: 16h Features: Waterproof, Lightweight, Compact Size Details: L: 10.4cm/4.09", W: 4.7cm/1.85", H: 2.9cm/1.14" (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 Bike Front Headlight 1 x Strap 1 x Charging Cable