Be seen and stay safe day or night with this powerful yet compact lighting combo. The ampp400s front light delivers 400 lumens with excellent side visibility and a sturdy flextighttrade bracket while the nano60 rear light is compact lightweight and designed for modern aero seatposts offering strong visibility in all conditions. Both lights are usb c rechargeable and feature memory modes making them smart reliable companions for any ride. Features ampp400s 400 lumen wide beam with opticubetrade lens nano60 60 lumen rear light with daytime visibility excellent side visibility for added safety five front and six rear light modes for all conditions mode memory and low battery indicators battery auto save rear extends runtime in low power usb c rechargeable cables not included flextighttrade front bracket and sp 14 ra aero rear bracket snap systemtrade compatibility for multiple mount options ipx4 water resistance for all weather reliability helmet and center fork mount options available front specifications dimensionsampp400s 36 x 100.5 x 38.5 mmnano60 30 x 32 x 30 mm weightampp400s 106gnano60 20.5g light sourceampp400s white led x1nano60 red led x1 run timeampp400shigh 400 lm 2 hrsmiddle 200 lm 4 hrslow 100 lm 8 hrsdaytime hyperconstant 400 100 lm 6 hrsflashing 100 lm 60 hrs nano60high 20 lm 3.5 hrslow 3 lm 20 hrsflashing 6 lm 60 hrsgroup ride 10 lm 25 hrsdaytime hyperflash 1 60 lm 15 hrsdaytime hyperflash 2 20 lm 20 hrs batteryampp400s li ion rechargeable 3.7v 2200mahnano60 li ion polymer rechargeable recharge timeampp400s approx. 4 hrs 1anano60 approx. 3 hrs 0.5a mount sizeampp400s phi22ndash35mmnano60 phi21.5ndash32mm up to 130mm outer circumference sp 14 ra recharge discharge cycle lifeapprox. 300 times to 70% capacity water resistanceboth units ipx4 other featuresampp400s mode memory low battery indicator optional helmet center fork mountnano60 mode memory low battery indicator battery auto save