It features six output options ranging from flash to solid, so you can customise it to your preference. Plus, the rubber band and magnetic mountain make attaching the light to your bike straight forward.Versatile rear bike lightBuilt-in reflectorLight mode memory - remembers the setting it was last on when turned back onMax output of 50 lumensBattery indicatorSide visibilityRecharge time 2hrsQuick release magnetic mountFive output options from solid to flashing2-in-1 Clip-On system - clip to loops or strap onto barsMicro-USB rechargeableWater resistantWeight: 22gDimensions: 3.9 x 3.1 x 1.9cm (WDH)