Garmin Varia Bike Light BundleVaria front and rear smart bike lights from Garmin help to create safer riding by adjusting to changing light conditions as well as bike speed when paired with select Edge computers. As speed increases, the headlight automatically projects light further ahead to where it’s needed most. As ambient light fades or gets brighter, both the headlight and rear light adjust automatically when paired with a light-sensing Edge 1000 bike computer Beam cut-off prevents headlight from blinding oncoming drivers. Whether you are training, commuting or just out for a pleasant evening ride with the family, Varia bike lights can adjust for speed and light conditions to put the light where you need it the most. Manual on/off controls allow you to use the lights for daylight rides as well Features: Head light Dimensions: 1.9″ x 3.6″ x 1.6″ (4.8 x 9.2 x 4.0cm) Rear light Dimensions: 1.5″ x 3.6″ x 0.7″ (3 8cm x 9.2cm x 1.7cm) Weight: Headlight: 7.8oz (222g); Rear light: 1.8oz (52.0 g) Modes: Headlight: High beam, low beam, auto beam; Rear light: Solid, flashing Lux (headlight use only): 95 Lux at 10 meters Lumens: Headlight: 600; Rear light: 28 Battery life (high power mode): Headlight: 2.5 hours; Rear light: 4 hours Charge Time: Headlight: 6 hours; Rear light: 2 hours ANT+®: Yes Water Rating: IPX7 (Withstands incidental exposure to water of up to 1 meter for up to 30 minutes)In The Box: Varia headlight (HL 500) Rear light (TL 300) Varia remote with road bike mount and mountain bike mount Universal out-front mount Seat-post quarter turn mount Rear light multi-location quarter-turn mount MicroUSB cable ManualsBuy Garmin Accessories from Chain Reaction Cycles, the World’s Largest Online Bike Store.