evo.com | Garmin Rear Lights > The Garmin Varia RearVue 820 Radar Tail Light keeps riders visible on the road, so they can keep their eyes up and ready for anything. This high-tech rear bike light features a responsive brake light and radar integration, facilitating better biker-driver relationships through communication, all while making the bike look a little MORE like a car. Integrate the Garmin Varia RearVue 820 Radar Tail Light with your other Garmin bike devices and experience the thrill of being safer and connected, just the right amount.. Light Modes solid / peloton / night flash / day flash Lumens Per Mode 100 day flash / 40 night flash / 25 solid / 8 peloton Battery Life 10 hours solid / 15 hours peloton / 10 hours night flash / 24 hours day flash / 30 hours radar-only Radar Technology Varia RearVue 820 radar detects vehicles approaching from up to 175 meters (more than 190 yards) away with a wider field of view. Compact Design A sleek, compact design and new seatpost mount means Varia RearVue 820 fits cleanly onto almost any road or gravel bicycle and is compatible with the Varia seat rail mount kit (sold separately). | Garmin Varia RearVue 820 Radar Tail Light 2026 in Black