Extremely powerful 1,400 lumens in the most compact form. Cycling Tuned Optics™ throws a long range, extra wide beam for road and mountain biking. Daytime visible flashes keeps you highly visible. Long lasting 1:45 to 110 hour run time. 8-step battery fuel gauge for full time battery awareness. Default brightness settings can be fine tuned for longer run times. USB-C rechargeable. Ultra sleek anodized aluminum alloy strikes the perfect balance of brightness, ruggedness, and compact style. Durable and IP67 waterproof for use in all weather conditions. Two-button design lets you fine tune the brightness and flash speeds to your cycling needs. Top button fine tunes the brightness of brightness modes and the flash speeds for flashing modes. Bottom button scrolls through the different lighting modes Expand run times beyond factory default settings by fine tuning the brightness modes and flash speeds. 9 lighting modes for day and night use (Boost – High – Medium –