Stay charged up anywhere you go on your wheels with the Knog PWR Battery Bike Light. Designed to easily mount onto your bike, this light comes in five different models to suit your needs. The Mountain, Trail, Road, Rider, and Commuter all range in both lumens and battery capacity. The largest of all, the Mountain, dishes up 1800 lumens and sports a 10,000mAh power bank. Likewise, the Commuter is the smallest and delivers 450 lumens and is complete with a 250mAh battery. The entire line is on double duty providing both light and power. In addition, the PWR Light lets you swap out light heads as you need. Plus, it has a variety of mounting solutions to work with virtually any and every bike. When your ride is done, simply pop the PWR Light off the mount and take it with you anywhere. The power bank is complete with two USB ports.