With 270 degrees of visibility front and back this lightset from Bontrager will ensure that you’re seen from all angles through the dusk and into the night. The Ion front light casts out up to 35 Lumens onto the path ahead with the Flare rear light visible from 600 meteres behind both lights are sealed effectively against the weather with rubber gaskets so you can rest assured you will be clearly visible even the rain. Solid Bontrager mounts with rotational position adjustment secure the lights to the bike, soft durable rubber wraps round the handlebar or seat post with a quick connect lever to allow removal of the lights while leaving the mounts in place. For those that still appreciate replaceable batteries both lights take AAA’s with the first set included in the box. As with most disposable battery lights the LEDs will steadily get dimmer as the battery voltage reduces rather than just cutting out immediately, for best results replace the batteries around the suggested run times outlined below.