Efficient charging Solar charging and USB charging option with no wiring required. The solar panel charges efficiently on sunny days and the warning light charges automatically. USB manual charging provides flexibility in two operating modes. Advanced design brightness LED beads with multiple flashing modes for clear signaling. The combination of burst flash mode and running water mode delivers a powerful alert in diverse situations. Easy to install Back panel installation requires no complex circuit changes, enabling quick and easy setup. Ensures vehicle stable performance. Wide application and intelligent sensing Intelligent sensor function maximizes visibility and safety for night driving of trucks, electric vehicles, motorcycles, and other vehicles. Suitable for drivers who require reliable performance and safety. Practical use scenarios On highways at night for trucks or electric vehicles to alert following drivers. Mounted on motorcycles to improve daytime and nighttime conspicuity. Used by roadside or escort vehicles during maintenance, roadwork, or emergency response to enhance warning effectiveness.