Knog Cobber Twinpack Big Set. A light set that includes a 470 lumen front light and 270 lumen rear light that are large, bold and extremely bright Light Modes. Both lights come with a large range of light modes which can easily be switched between by holding down on the power button. The light modes included, are:Front LightMax: 280 lumens – 2.5 hoursMid: 100 lumens – 5 hoursSteady Pulse: 470 lumens – 3.5 hoursFlash: 470 lumens – 9 hoursRolling Flash: 190 lumens – 8 hoursSide Flash: 280 lumens – 3.5 hoursDisco Flash: 230 lumens – 7 hoursEco Flash: 35 lumens – 120 hoursRear LightMax: 160 lumens – 2 hoursMid: 60 lumens – 3.5 hoursSteady Pulse: 270 lumens – 2.59 hoursFlash: 270 lumens – 6.5 hoursRolling Flash: 110 lumens – 5.5 hoursSide Flash: 170 lumens – 2 hoursDisco Flash: 140 lumens – 5 hoursEco Flash: 15 lumens – 100 hoursMounting. Both lights come with tool-free, integrated, silicone straps that work with most bars and seat posts with a magnetic mount and an additional aero mount. These mounting systems are quick and easy to use which is perfect for commuters USB Rechargeable. The lights both come with internal lithium polymer batteries and exterior USB plugs which are adapted to be fully weather resistant. These systems allow you to quickly and easily recharge the lights via any standard USB port Features. Includes front and rear light8 different light modesIntegrated USB plug for cable free chargingInternal lithium polymer battery5.5 hours full recharge timeTool-less removable silicone straps for bars/seat posts 22-32mm diameter with magnetic mountEfficient Chip on Board LEDs designed to provide maximum brightness100% waterproof against all elements330-degrees visibilityEach light weighs 59gIndividual dimensions: 92mm x 33mmBuy Knog Bike Lights from Chain Reaction Cycles, the World’s Largest Online Bike Store.