. The largest light in the trio, the Cobber Front Big Light, comes with a COB LED layout that produces up to 470 lumens of light output with a wide spread beam. This is a lightweight bike light that is easy to transport and is ideal for urban commuters Light Modes. Knog’s Cobber Front Big Light comes with a large range of light modes which can easily be switched between and include both constant and flashing modes, including:Max: 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 hoursUSB Rechargeable. Adding to the convenience of the lights design the light comes with an internal lithium polymer battery which is easily recharged via an integrated USB plug. The light can therefore be fully recharged in just 5.5 hours via any standard USB port Mounting. The light is compatible with most bike frames and includes a tool-free, silicone strap mount, and an aero mount. Both mounts provide a quick release system that is ideal for commuters Features. Multiple light modesIntegrated USB plug for quick and easy chargingInternal lithium polymer battery5.5 hours full recharge timeTool-less removable silicone straps for bars/seat postsCompatible with seat posts/bars 22 – 32mm in diameterEfficient Chip on Board LEDs designed to provide maximum brightness100% waterproofOffers full protection from the elementsWeighs 59gDimensions: 92mm x 33mmBuy Knog Front Lights from Chain Reaction Cycles, the World’s Largest Online Bike Store.