This premium light set is supplied with Cateye's AMPP500 and VIZ150, both USB rechargeable bike lights. The AMPP500 offers maximum side visibility with 500 lumens, whilst the VIZ150 comes with long rear beam projection and OptiCube lens technology.AMP500:Rechargeable headlight (500 lm)Wide beam with OptiCube lens technologyExcellent side visibilityLow battery indicator (Illuminates in red with less than 20% battery remaining)USB rechargeable (Micro-USB cable included)Mode memory functionFour light modes (High / Low / Daytime HyperConstant / Flashing)Turns on High mode with double-click of power buttonFlexTight bracketImproved release button has made it easy to remove the light unit from the bracketHelmet mount and center fork bracket (optional)VIZ150:3 LEDs (150 lm)Highly visible during daytime300 degree visibilityLong rear beam projectionOptiCube lens technologyLithium-ion rechargeable batteryUSB rechargeableLow battery indicator4 modes *Charging time: 3hMode memory functionBattery 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 seatpostSnap System