Bike Lights for Night Riding,Bicycle Wheel Tail Light Front and Back Rear,Mountain Bikes and Motorcycle Led Safety Police Cycling Helmet Brake Light - CYDZSW

• Offers Three Mode: 4 high brightness red led lights, 3 lighting modes(always on, flash and warning mode). You can select mode with a one button switch. Safer riding at night. Built-in Rechargeable Battery: Lower power 200mah rechargeable battery, charging for 2 hours, working for 8 ~ 10 Hours, 30 inch long usb cable included. Waterproof Design: Helmet light employs an lPX4 waterproof design for allowing short exposure to the rain. Can turn on the light normally even when riding in rainy days. Easy Installation: Separate the velcro, attach one side to the back of the helmet and the other to the tail light, then Fix the thorn surface behind the tail light to the hairy surface. Safety Warning Light Wide Application: Can be used in motorcycle helmet, e-bike, bicycle, backpack or motorcycle tail.