SERFAS VULCAN 130 LUMEN TAIL LIGHTENHANCED SIDE VISIBILITY DESIGNWhether you're riding during the heat of the day or riding in the dark of the night, you should have lights on your bike to increase your visibility. Daytime visibility is just as important as nighttime visibility. The Serfas Vulcan 130 Lumen Tail Light has a unique fin lens design that provides enhanced long-distance visibility while creating generous attention-grabbing side illumination. The three super-bright CREE LEDs provide up to 130 lumens and the finned design provides 180deg visibility. The light features an LED charge indicator and is USB C rechargeable and has an aero post compatible bracket. Features Finned lens design provides 180deg visibility Three super-bright CREE LEDs that produce up to 130 lumens LED charge indicator and USB C rechargeable(Add more if you need to)Flash Modes Mode High Low Daytime Flash High Flash Low Flash Lumens50151307520Run Time (h:min)1:305:3019:0010:0022:00Specifications Number of LEDs3Battery Type Rechargeable Weight52g (w/ Bracket)Water-Resistant Yes Low Power Indicator Yes Mounting Type Seatpost, Aero Post Battery Mounting Internal | Serfas | Vulcan 130 Lumen Tail Light 130 Lumen