The new Knog PWR range – the Commuter and the Rider are bike lights with a built in power bank to allow you to charge your devices. In time, Knog will be releasing additional tech, including a speaker which will plug in directly to the unit. Both the Commuter and the Rider are 450 lumens. The difference between the two is in their capacity, both run time for the headlight, and charging ability. The Commuter is the lower capacity of the 2, with a 40 min run time at full power and a 850mAh power bank.