Knog PWR Lighthead is a lighthead that uses a circular beam to detect and illuminate even unpredictable obstacles from different angles. This modular head can also be used with small, medium and large PWR powerbanks.When Knog designs a light, optics are the most important consideration. Whether it's new LED forms or beam patterns, he strives to make every lumen work efficiently once you're on the bike. If you use a PWR light for other types of cycling, this modular light system allows you to expand your product offering without a lot of expense. Get stronger light for more brightness. Light output: 700 LumenDimensions: 33 mm x 30 mm ØWeight: 32 gPackaging: light head & USB cable COMPATIBILITY: The 700 L light head is compatible with 3350 mAh, 5000 mAh and 10,000 mAh PWR power banks. MODE PROGRAMMING: Plug the lighthead into your computer, download the ModeMaker app, and then customize the light modes to your requirements. LIGHTING BEAM: Circular beam lighthead to illuminate unpredictable obstacles from different angles. Accessories.