Cateye ampp 500 rapid mini front rear lightdesigned for cycling safely at night, this front and rear light set from cateye will help you stay visible after dark'. '.strtoupper('i')deal for commuters, it gives out a maximum of 500 lumens and can be easily attached to your seatpost and saddle'. '.strtoupper('f')ront light featuresrechargeable headlightwide beam with opticubetrade lens technologyexcellent side visibilitylow battery indicator illuminates in red with less than 20% battery remainingturns on high mode with a double click of the power buttonimproved release button has made it easy to remove the light unit from the bracketlumens 500light source high intensity white led x1charger usb rechargeable micro usb cable includedcharging time approx'. '.strtoupper('4') 8hrs usb2.0 rechargemode memory functionsettings four light modes high low daytime hyperconstant flashinghandlebar attachments measurements flextighttrade bracketdimensions 34 x 100 x 37 mmweight 117grear light featureslumens 25battery lithium ion rechargeable batteryrechargeable yescharger usb rechargeable micro usb cable includedlow battery indicatorsettings 4 light modescharging time 2hmode memory functionbattery auto save the mode automatically changes to flashing when the battery power gets low.waterproof yesseatpost measurements seatpost sp 14 r bracket 21.5 32mmdimensions 52 x 20 x 31 mmweight 21.5g with batteriesfront light runtimehigh mode 500 lumens 1.5 hourslow mode 250 lumens 3 hoursdaytime hyperconstant mode 500 250 lumens 5 hoursflashing mode 250 lumens 50hoursrear light runtimeconstant mode 3 hoursflashing mode 30 hoursrapid mode 5 hoursgroup ride mode 20 hoursbuy cateye lights from chain reaction cycles, the world's largest online bike store.