Whilst the AMPP500 offers maximum side visibility and 500 lumens, the VIZ150 has OpttiCube lens technology and 150 lumens. Both USB rechargeable lights, they also feature a low battery indicator, so you know when it's time to slow down.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 ... More info
