Knog PWR Road 600L. The PWR Road is a modular light with up to 600 lumens of light output which makes this the ultimate bike light for taking on the road not just to be seen but also to see by Light Modes. The light comes with 6 pre made modes that you can change between for your changing environment or for your diminishing battery life. The modes included are:Max: 600 lumens – 2.3hrs battery lifeMid: 250 lumens – 6.1hrs battery lifeStamina: 65 lumens – 23hrs battery lifePulse: 600 lumens – 8hrs battery lifeStrobe flash: 250 lumens – 12hrs battery lifeEco-Flash: 65 lumens – 195hrs battery lifePower Bank. The PWR Road is fully rechargeable which means you can easily recharge your light via your computer while you’re at the office ready for cycling home in the evening. Another useful thing about the charging capabilities of this light is that it can also be used as a power bank. You can plug USB port compatible devices into the PWR Road to charge them this can include things like your phone, navigational device, GoPro or cycling computer Features. 600 lumens light output104 x 30mmWeighs 125gBattery indicatorCan also be used as a power bankProgrammable modesInterchangeable light headsWater resistant when cap is onBuy Knog Lights from Chain Reaction Cycles, the World’s Largest Online Bike Store.