1. Bicycle Taillight Multi Lighting Modes USB Charging LED MTB Road Bike Flash Tail Rear Light For Cycling Seatpost Warning Lamps 2. -USB charging 3. -IPX2 waterproof 4. -Shell Material: Waterproof ABS 5. -Charging time: about 2 hours 6. -Working Time: 3-6 hours according to different using mode 7. -Easy to install, suitable for many sizes of handlebars or seatpost 8. -5 lighting modes style: Strong light, Weak Light, Flashing, warning lights, 100% lighting(as working video showing) 9. How to use ? 10. Open: click 1 time (0.5 second) 11. Close: 5 lighting modes style need press 3 seconds. 4 lighting modes style need press 1 second. 12. 750-ps - 0080203 13. Wholesalers and retailers are welcomed. 14. For wholesale,we will offer discount or free shipping method which only takes short time to arrive. 15. If you are a retailer and wanna make your own business, we could send the goods to your customers directly and won't leave any information about us if you'd like to. 16. What should I if I don't receive my item? 17. Please contact us first, we will track your item. If the parcel was lost because of some reason, we will think over to full refund or resend it for you. We are honest seller, so don't worry. 18. If the products have problems how to do it? 19. Please contact with us in time, we will solve it. Don't leave any bad review firstly, that can not solve any problem. 20. Specifications: 21. High brightness, safer 22. Five modes, follow one's incline 23. Long endurance, sufficient power supply 24. Small and light, portable 25. USB quick charging 26. The shape is unique and distinctive 27. Powerful inner core circuit board 28. Ipx-2 life waterproof 29. Easy to disassemble and assemble at any time 30. Package Included: 31. Tail lights * 1 32. Headlight straps *1 33. USB cable * 1 34. Packing box * 1