Bicycle Parts Description: Due to a rechargeable battery and waterproof case, the helmet light is energy-saving, not easy to corrosion, environmentally friendly and durable. High lumen, long-lasting use, 5-speed dimming and integrated front and rear light design are the features of this helmet light, allowing you to prevent tailgating accidents and ensure driver safety when driving in fog, rain, snow or at night or in dark environments. It is made of high-quality ABS and PC material. The length of the product is 8.6 cm, the width is 2.3 cm, the height is 2.3 cm. It is suitable for folding bike, mountain bike, bicycle and so on. Product Information Item Name:Helmet Light Material: ABS,PC Waterproof: IP66 Battery Capacity: 800mAh(Included) Charging Input: 5V/280mA Light Mode: Constant On, Slow Flash, Rhythm Flash, Continuous Flash, Fast Flash Features: Easy Install, High Lumen, Durable Size Details: 8.6cm x 2.3cm x 2.3cm/3.39 x 0.91 x 0.91 (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Helmet Light 1 x Bracket 1 x Helmet Bracket 1 x Fixing Screw 1 x Charging Cable