Car solar power simulated dummy alarm warning anti-theft usb led flashing light. Dummy car alarm will only flash when it is dark; will not flash when it is light enough to keep item have highly efficient and longer life. You can cover the other end by dark. Easy to install, just stick it to the of the vehicle with corresponding glue. 100% New and high quality. This led alarm light does not require a car alarm system. Fake alarm lamp solar energy can be absorbed and saved in high efficiency solar cells, it's powered by solar, no need install battery. And there is a usb charger interface.