Be seen from behind. The CygoLite Hotshot tail light is USB and A/C rechargeable -- and it's very very bright. OSP Programmable technology allows you to change flash speeds with the push of a button, and program flash speed to your own preference.
This model comes with both an A/C charger and a USB cable. If you don't need the A/C charger, there's the CygoLite Hotshot 2W USB Tail Light-Includes USB.
CygoLite Rack Mount Bracket for Hotshot
CygoLite 2ft Extension Cord for Li-Ion Batteries
CygoLite 7.6v 5.8Ah Li-Ion Battery for TridenX 1100 & 750 Xtra