The Kryptonite Pulsar F-65 Front Bike Light makes riding at night safer and simple. The Pulsar features a multi-fit quick release system that allows tool-free mounting on the handle bars/bike frame (F-65 fits 10-32mm handle bars in diameter). The front Pulsar F-65 boasts an impressive 65 lumen beam to light up the path ahead of you. The built-in battery indicator with show red when battery is lower than 25% and blue when the batter is fully charged.That's right, no need to worry about swapping batteries. This light is rechargeable and comes with a USB charging cable. This allows the Pulsar to cut out heavy and bulky batteries. If you get caught in the rain, don't worry. The F-65 is water resistant and built ready for anything you throw at them! Don't get caught riding in the dark. Light up the night with Kryptonite!