Blind Spot MonitorThe radar has a beam angle up to 40 degrees, so it can detect rear vehicles even at corners. Comprehensive DetectionThe radar of L508 uses millimeter-wave pulse signals to provide comprehensive and stable detection of high-speed motor vehicles and even slow-moving bicycles. 5 Light ModesQuick and easy switch with only one click between Solid Mode, Flashing Mode, Pulse Mode, Peloton Mode and Radar-only Mode. Supports 220-degree wide viewing angle with visibility of up to 1.2km. Peloton Mode - low brightness and a softer light to protect the eyes of fellow cyclists. Flashing / Pulse Mode - after connecting to the Magene Utility APP, you can customise the interval. Light / Radar CombinationCustomise all light modes with Radar Easy On/Off. Examples; Solid Mode + Radar ON - short commuter rides at night on open roads Flashing Mode + Radar ON - long-distance rides at night on open roads (for longer battery life) Peloton Mode + Radar OFF - night group training on a closed road Radar Only Mode - daytime riding on open roads Smart BrakingAccelerometer can quickly detect and enter 3 seconds highlight mode even with slight braking, while ignoring shaking and small bumps to prevent false starts. Vehicle Approach WarningIf a rear vehicle enter within 140 metres, the taillight enters flashing mode for 2 seconds. This feature only activates when rear vehicle approach suddenly. Auto-Sleep / Auto-WakeVibration sensor allows it to enter sleep mode after 5 minutes in stationary position, and wake when when moving again. (NOTE. Feature is turned off by default - it must be activated manually in the Magene Utility APP) - SPECIFICATIONS - Physical Dimensions - 35 * 94 * 25 mm Weight - 65 g Water-resistance - IPX7 Radar Detection Distance (max) - 140 metres Detection Angle (horizontal) - 40 degrees Detection Angle (vertical) - +/- 10 degrees Detectable Target Speed (relative) - 10 to 120 km/h Smart Brake Sensing - yes Auto-sleep - yes (5 minutes) Light Modes - solid, flashing (20 lumens) / pulse (3 - 20 lumens) / peloton (6 lumens) / radar-only Viewing Angle - 220 degrees Connectivity Wireless - Bluetooth, ANT+ Charging - USB Type-C Battery Life Solid Mode - 6h Flashing Mode - 10h Peloton Mode - 8h Pulse Mode - 12h Standby Mode - up to 3 months Charging Time - 3 hrs (full cycle) Seat Post - Compatibility Seat Post - round square, aero and more Bike Computers - Compatibility Wahoo - Bolt, Roam Garmin - 130, 520, 530, 820, 830, 1000, 1030, 1040 Bryton - R750, S500 Smart Watches - Compatibility Garmin Forerunner 245, 645, 735, 745, 935, 945 Garmin D2 Garmin Fenix 5, 5s, 5x, 5Plus, 5xPlus, 6s, 6x, 6Pro, 6sPro, 6xPro - Includes - L508 Smart Bike Radar Tail Light *1 Rubber Strap *3 Seat post bracket (with pad) *1 Manual *1 USB Type-C cable *1 Safety strap *1