Olight BS100 Smart Bike Tail Black & Red Light BS100

Dimensions: 1.46" x 1.46" x 1.18". Water resistant. Impact resistant. Rechargeable. Highly transparent lighting strip design. Light and motion sensors. Sleep mode after one minute inaction. Engaging in sudden stops increases the light output. Modes: High (75-30 lumens, 20+120m runtime); Low (20-8 lumens, 20+580m runtime); Flash (0-75 lumens, 240m runtime); Group ride eco (0-10 lumens, 7200m runtime); Smart day (0-100 lumens 540m runtime); Smart night (20-75 lumens, 150m runtime). Includes: Saddle mount, Seat post mount, and Type-C charging cable. Requires (1) Lithium battery (included). Boxed.