Cateye sync core 500 lm front lighta great commuter front light with up to 500 lumens of light output with full control via the cateye sync app.cateye synccateyes sync core front light comes with cateye sync technology which uses the sync app available through goggle play and the app store which gives you full control over all your light devices. With a couple of taps on your smartphone you can turn your lights on and off and switch light modes. This is especially useful when using multiple cateye sync lights.light modesthe light comes with 5 different light modes with a range of outputs that suits a variety of lighting conditions and your depleting battery life. The modes include the daytime hyperconstant mode which keeps you visible even in direct sunlight.high 500 lumens ndash 2 hoursmiddle 150 lumens ndash 9 hourslow 100 lumens ndash 15 hoursdaytime hyperconstant 500 100 lumens ndash 18 hoursflashing 100 lumens ndash 130 hoursusb rechargeablethe internal lithium ion battery is usb rechargeable and the light can be fully recharged via any standard usb port. With the use of the cateye sync app you can easily see when its time to recharge the light and it takes just 3 hours to fully recharge the light and it comes with a battery life of up to 130 hours of battery life.mountingan integrated flextight mounting bracket with an adjustable design that will fit most handlebars.featurescateye sync technology5 light modesopticube lens technologysuperior side visibilitydaytime hyperconstant modehigh intensity white ledusb rechargeable lithium ion batteryup to 130 hours of battery life3 hours full recharge timeflextight mounting bracketweighs 94gdimensions 41.5 x 33.5 x 93buy cateye lights from chain reaction cycles, the world's largest online bike store.