Compliant with GB, E-Mark CLASS-B; Classic design, all-aluminum shell; Using a reflective free-form lamp cup with light distribution and driver optimized lighting system, stable light; Side light transmission, the central illuminance at 10 meters can reach 100Lux or more, suitable for electric mopeds and high-speed E-BIKE; With a clear bright / dark boundary, a good and uniform light field is established in the close range of illumination; Quick disassembly and assembly design of reflectors.