Topeak TaiLux 25 Taillight - USB Rechargable. The Topeak TailLux 25 USB design features convenient cable-free charging with a direct USB port plug. Two super bright LEDs provide 25 lumens and three light modes so you can be seen up to 2km away - even on the darkest nights. Bi-directional tool-free mounting and removal is accomplished by a single silicone strap making it simple to use on seatposts seatstays or Topeak bags. (with included bag clip)Fits aero or round seatposts (├╕25.4 - ├╕34.9mm) seatstay and Topeak bags
Engineering grade polymer body
IPX 6 Waterproof
3 Modes
2 hour recharge time via USB