Visible up to 600 metres, the super-bright high powered white LED has 4 modes: constant, strobe flash, fast flash, and random strobe. The front light has a brightness of 30 lumens and burns for 3hrs (steady) or up to 12hrs (flashing). The rear light has a brightness of 7 lumens and burns for 12hrs (steady), or up to 36hrs (flashing). The water-resistant flexible silicone body is super slim, has an integrated clipping feature and comes with quick-release mounting. It also features a low battery warning indicator.