The innovative Garmin Varia Headlight shines light right where you need it. Based on GPS data from a compatible edge unit (Sold separately), the beam automatically focuses higher at faster speeds, lighting the road further ahead for enhanced visibility and safety when you need it the most. Shining 100 lux at 10 metre, there Varia focuses light ahead instead of around while a high beam cut off prevents blinding oncoming vehicles.The Garmin Varia Rear Tail Light operates in both solid and flashing modes for maximum versatility out on the roads. As the bike decelerates, the light intensity increases to warn approaching traffic of your presence on the road for enhanced safety throughout your rides. With the Varia Tail Light you can add a second light to the smart light setup for turn signals, which can be controlled through a compatible Edge device or Varia remote (Both sold separately), for maximum control when you need it the most.