The flashlight’s flashlight function refers to the faster flashing frequency. It has the self-defense function of shaking the opponent’s eyes. The role of the flashlight is to remind. For example, if you need to attract the attention of others in an emergency, you can turn on the flashlight so that others will notice. Own.
For example, a simple example is when a car breaks down on a high-speed, and it is parked at night. You can drive a flashlight to warn the car behind. Of course, you can’t shoot directly into the driver’s cab. People come to save themselves.