Electron Backupz Seatpost 6 Led Rear Light

This is a miniature, back-up, super-bright, LED, rear light, that offers amazing light output, is ideal for city riders and can be mounted on your seatpost in seconds.
It has 6 super-bright red LEDs, with wide LED spacing to allow maximum visibility, and operates on two flashing and one constant mode.
It has a compact waterproof design that is perfect for those wet winter nights and can be mounted on your seatpost or seat stays, yet is small enough to use as a keyring or attach to you belt loops.
It operates on 2 x CR2016 batteries (included), that give up to 150 hours runtime.