Why do we need it? Often times, the warning light on the car itself is unobtrusive. Thieves often pull the car alarm after breaking a window, which is ineffective in intimidating thieves. However, a warning light in a conspicuous place can warn thieves away from my car. My car is less likely to get into trouble and effectively avoids property damage Upgraded version of solar car antitheft system LED flashing light, the light is more shining and clearer in the dark night, the product is more solid, as always, support USB and solar charging Car solar powered analog warning antitheft LED security flashing light, the product flashes every 5 seconds, in line with most of the car original antitheft alarm system lights Equipped with solar battery, the sunlight provides enough energy to make it work. If there is no sunlight for a long time, you can use the Android charging cable to charge it charging voltage 5V, the same as the output voltage of rechargeable battery and car recorder, it can be used for about 7 days in one charge The warning light is equipped with a light sensor that stops flashing in sunlight and works in the dark, if you need it to work in the daytime, you can set the switch to on, Simultaneously cover the solar panel with paper or tapePlease note that after performing this operation, the solar energy will not be able to charge on its own and will need to be charged using USB Please clean the location before use, then tear off the included glue and stick it here, press it for 510 seconds, it will be firmly stuck on it, set the switch to on, it is recommended to place it in a place that does not affect the drivers vision