The MET USB LED Light offers greater visibility in the dark in an easy helmet-mounted solution. This light features a tool-free fit to MET and Bluegrass helmets with the Safe-T Advanced fit system. The USB LED Light offers a Nightsafe Mode which uses an integrated light sensor switch to automatically turn on in darkness and lowlight conditions, and turn off when exposed to daylight. It also offers 4 other modes, from steady light to blinking modes. The MET USB LED Light offers a 180 degree visibility that can be seen up to 500m away. The USB Light also features a rechargable lithium battery that recharges quickly through a micro-USB port. METs USB LED Light offers excellent visibility that will help to keep you safe on early morning commutes and cool evening rides.SpecificationsWeight: 13gVisibility: 180 degrees, 500 metersLED: 6-high intensity red LEDBrightness: 25 LumensCharging Port: USB Micro-B portCable: USB Micro-B to USB A cable includedWater Resistent casingModes:Nightsafe - Auto On/OffSteady Light - 2.5 hour runtimeBlinking Modes - 4 hour runtimeFull BlinkingProgressive Blinking - Inside to OutsideProgressive Blinking - Outside to InsideCompatible Models2017 Models:MET RivaleMET MantaMET LupoMET ParabellumMET ParachuteBluegrass Goldeneyes2016 Models:MET InfernoMET RivaleMET StradivariusMET MantaMET Sine ThesisMET VelenoMET LupoMET ParabellumMET ParachuteBluegrass Goldeeyes2015 Models:MET EstroMET InfernoMET StradivariusMET Sine ThesisMET VelenoMET KaosMET ParabellumMET ParachuteBluegrass Goldeneyes