Garmin Varia UT800 Smart Cycling Headlight Urban Edition with 5 Light Modes IncludedWhether youre riding on the streets or the trail, you wont have to quit when the sun does. When your speed varies, Varia UT800 adjusts too. When paired with compatible Edge cycling computers, the UT800 adjusts brightness to give the lumens you need for up to 4 hours, so you can ride with confidence. The smart capabilities of the Varia UT800 allow you to pair it to compatible Edge computers with light sensors. Once paired, Varia UT800 automatically