This 150 lumen light is a great value addition to your bike. With up to 24 hours of battery life and 6 modes: High Steady, Medium Steady, Low Steady, Daytime pulse, Nightime pulse and Economic flash this light is perfect for all riding conditions. Fully USB rechargable; no batteries to replace. Power saving function- 10% power or less, lights will automatically switch to lowest lumen output. Memory Function-Light turns on at the last mode it was turned off. Frontbike light(s). 150lumens. Modes:6. Showerproof. Waterproof. Size H8, W3, D3cm. Batteries required: 1 x lithium (included) . Approximate run time from 2 to 24 hours (dependant on use). Manufacturer’s 2 year guarantee. EAN:720018004479.