The Cateye Wearable Mini Battery Light is perfect for providing a small amount of extra visibility at night or during the day thanks to it's small, versatile design that can be clipped onto a bag or jersey pocket and can even be mounted to your bike using the included rubber strap.Lightweight and versatile wearable light that can also be fitted to your bikeSuper lightweight at just 12g including CR2032 battery3 modes provide up to 400 hours of burn timeThe Wearable Mini's tiny size (just 45.5 x 44 x 20mm) make it easy to carry in a saddle bag or jersey pocket and mean it can deployed at a moments notice, whether that be clipped to a bag or your jersey or even attached to your bike. The Wearable Mini has 3 power modes to suit differing light conditions or extend burn time, with the easily replaceable CR2032 battery providing up to 400 hours of burn time in Flashing mode. Lightweight, incredibly portable and more than bright enough for night or day-time riding, the Cateye Wearable Mini Battery Light is perfect for riders looking for a small additional light to provide extra visibility when out on the road.Power Modes/Burntime:Constant 50 hours Flashing 400 hoursRapid 100 hours