The ampp500s blasts a wide 500-lumen beam with exceptional side visibility, while the viz150 delivers a bright 150 lumens with 300 rear coverage. Both lights are usb-c rechargeable, simple to operate, and quick to mount with flextight and snap system brackets perfect for commuters and weekend riders alike.Key featuresampp500s delivers 500 lumens with a wide opticube beam and strong side visibilitylarge, glove-friendly power button with low battery indicatorfive light modes including daytime hyperconstanthigh-mode double-click start and mode memoryusb-c rechargeable cable not included secure flextight mount, compatible with optional helmet fork mountsviz150 rear light uses 3 leds with a 150-lumen opticube beam300 visibility and four modes including daytime hyperflash auto save to flashing mode on low batteryusb-c rechargeable cable not included mounts with aero-compatible sp-15 bracket and snap system specificationsdimensionsampp500s: 36 x 100.5 X 38.5 Mmviz150: 21 x 62.5 X 32.5 Mmweightampp500s: 106gviz150: 27glight sourceampp500s: white led x1viz150: red led x3batteryampp500s: li-ion rechargeable 3.7V, 2200mah viz150: li-ion rechargeable 3.7V, 500mah runtimeampp500shigh 500 lumens : 1.5 Hrsmiddle 250 lumens : 3 hrslow 100 lumens : 8 hrsdaytime hyperconstant 500 100 lumens : 5 hrsflashing 100 lumens : 60 hrsviz150constant 20 lumens : 5 hrsflashing 15 lumens : 70 hrsgroup ride 5 lumens : 33 hrsdaytime hyperflash 150 lumens : 15 hrsrecharge timeampp500s: approx. 4 Hrs 1a vi...