The Infinite Light Power Pack doubles the runtimes of all compatible Lezyne USB-C Front LED units. Compact, versatile design quickly and securely mounts to bars and frames with our adjustable Velcro strap. Its integrated extra-long cable (958mm / 39-inch) plugs directly into lighting systems via waterproof USB-C. This power pack has a 23 Wh and 6600 mAh battery capacity.