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 (as shown in product images) How to use? Open: click 1 time (0.5 second) Close: press and hold for 3 seconds to turn off (varies by model) 750-ps - 0080203 What if I don't receive my item? Please first, we will track your item. If the parcel is lost, we will offer a full refund or resend the item. If the product has issues, what should I do? Please promptly so we can resolve the issue. We ask that you not leave negative feedback before contacting us, as it does not help resolve problems. Specifications: High brightness for increased safety Five lighting modes Long battery life with reliable power supply Compact and lightweight design USB rechargeable Unique and distinctive shape Durable internal circuit board IPX2 water-resistant protection Easy to assemble and disassemble Package Included: Tail light * 1 Headlight strap * 1 USB cable * 1 Packing box * 1