NiteRider Lumina 1200 Boost USB Rechargeable Bike Light Powerful

Lock mode, perfect for use during storage and transporting the light. Press and hold power button for 7 seconds to lock/unlock operation of light. Important: the Lumina 1200 boost is set to lock mode at the Factory. Unlock before use. All new collimator lens, Distributes a generous even widespread beam pattern Boost mode, double tap Power button to unleash maximum LED output at 1200 lumens! 5 light levels Plus 2 daylight flash modes.FL1 standard IP64, dust and water-resistant.Secure on and off-road capable handlebar mount, fits up to 35mm handlebars.6 hour runtime on low at 275 lumens or Go hand-held in walk mode - 18 hour runtime at 75 lumens.Lifetime : covers any defects in mechanical components (housings, covers, mounts and fasteners) and LEDs.Low battery indicator: power button changes from blue to red when battery level drops below approx. 20% remaining.