The Comet-X Rear light is a water resistant USB rechargeable light with 25 lumens output.
RB-22 (Universal bracket)
2 O-rings for mounting:
RS-G (fits 20-35mm diameters)
RS-H (fits 35-52mm diameters)
BK-21 (Belt clip)
USB-WP (Water resistant USB cable)
Quick release universal bracket RB-22 (fits all round bars and AERO style bars)
Low battery, charging and fully charged indicator
Automatic fully charged cut-off system
Water resistant (IPX 4)
Size: 73 x 18 x 21mm
See the Moon Comet X Pro for a brighter light.