This is a dummy light for car security. It has a solar function, so it charges when it's bright and sunny, and when it gets dark, the sensor reacts and the red light flashes (about once every 3 seconds), making it look like a security system is activated. 【No batteries needed, easy installation】 It can be charged during the day and lit at night. It can also be charged with a USB cord! (Cord not included) Solar charging means no wiring is needed, and it can be easily installed with the double-sided tape on the back. Click here! (⁠.⁠ ❛ ᴗ ❛.⁠) ↓↓↓↓↓↓↓↓↓ #Various Clothing and Goods ◆Size: Length 5cm x Width 2.5cm This product is intended to psychologically deter car vandalism and theft. It does not emit any warning sounds. For example, it can be used for security against car vandalism when parking at night in unpopular places, such as fishing spots! ※We are not responsible for any compensation in the event of theft or other damage, so please understand this before purchasing. To sell at a lower price, we do not include a box when shipping. Please note that we will ship in simple packaging. ♥Also, since this is an overseas product, there may be some scratches on the main body, but it will not affect its use, so please understand this before purchasing.