The perfect combination kit for all year-round visibility Perfectly matched for features and functions the extremely popular AMPP400 is now paired with the all new Vi Z150 USB rechargeable rear light. Both feature the simple and secure Cateye brackets (Flex Tight™ on the AMPP400 & the all-new Snap System™ on the Vi Z150). The AMPP400 is perfect for urban riding in all weather conditions. The compact, lightweight Cateye AMPP 400 offers impressive functionality and visibility, whilst the incredibly powerful Vi Z 150 gives you a feature rich, long lasting and highly visible (150 lumen) rear safety light that has an amazing 70 hours of runtime when in flashing mode. AMPP 400 FEATURES: Rechargeable headlight (400 lm) Wide beam with Opti Cube™ lens technology Excellent side visibility Low battery indicator (Illuminates in red with less than 20% battery remaining) USB rechargeable (Micro-USB cable included) Mode memory function Four light modes (High / Low / Daytime Hyper Constant / Flashing) Turns on High mode with double-click of power button. Flex Tight™ bracket Improved release button has made it easy to remove the light unit from the bracket. Helmet mount and center fork bracket (optional) Weight: Only 117g Designed in Japan. RUNTIME: High mode 400 lumens: 2hrs Low mode 200 lumens: 4hrs Hyper Constant mode 400/200 lumens: 6hrs Flashing mode 200 lumens: 60hrs Charging time (From empty) : 2. 5 hrs. Vi Z 150 FEATURES: 3 LEDs (150 lumens) Focused lens for maximum visibility Highly visible during daytime Superior 300 degree visibility Long rear beam projection Clear Opti Cube™ lens technology Lithium-ion rechargeable battery USB rechargeable (Micro-USB cable included) Low battery indicator4 modes: Constant / Flashing / Group Ride / Daytime Hyperflash Mode memory function Battery Auto Save (The mode automatically changes to flashing when the battery power gets low.)New seat post bracket SP-15 which fits contemporary (Kammtail) aero seat post. Snap System™ bracket.