Bicycle Taillight Multi Lighting Modes USB Charging LED MTB Road Bike Flash Tail Rear Light For Cycling Seatpost Warning Lamps -USB charging -IPX2 waterproof -Shell Material: Waterproof ABS -Charging time: about 2 hours -Working Time: 3-6 hours according to different using mode -Easy to install, suitable for many sizes of handlebars or seatpost -5 lighting modes: Strong light, Weak Light, Flashing, warning lights, 100% lighting How to use? Open: click 1 time (0.5 second) Close: 5 lighting modes style need press 3 seconds. 4 lighting modes style need press 1 second. 750-ps - 0080203 What should I do if I don't receive my item? Please first, we will track your item. If the parcel was lost, we will offer a full refund or resend it. If the products have problems, how to resolve? Please in time, we will solve the issue. Please do not leave negative feedback immediately as it does not help resolve problems. Specifications: High brightness, safer Five modes Long endurance, sufficient power supply Small and light, portable USB quick charging Unique and distinctive design Powerful inner core circuit board IPX2 waterproof Easy to disassemble and assemble Package Included: Tail lights * 1 Headlight straps * 1 USB cable * 1 Packing box * 1