About the Kong Lil\\\' Cobber Rear If you are looking for the best commuter bike light of 2019, look no further. The Lil\\\' Cobber rear light produces an incredible 330º of illumination, so you\\\'ll be clearly seen from all angles. In an increasingly busy world, this bike light is brilliantly effective at attracting attention and helping keep you safe on the road. At an impressive 50 lumens it cannot be ignored. Key Features > USB Rechargeable Lithium Polymer batter with no charging cable required. Plugs directly into USB ports & is designed to be exposed to the elements > Fully charges in 4 hours with an LED indicator to show you it\\\'s done. Then lasts for up to 120 hours on Eco Flash mode > Efficient Chip on Board (COB) LEDs designed to provide maximum brightness level for up to 90% of the battery burn time for each mode > Tool-less removable silicone straps for bars/seat posts 22 - 32mm+ diameter with magnetic mount. Aero Mount also included > The Cobber is 100% waterproof, for use in all weather