About this item Solar Powered This is a car anti-theft alarm light that can be charged by solar energy. It can even be charged automatically during the day in the OFF mode. Intelligent Control With an overall size of 6*3.1*1.3cm/2.4*1.2*0.5inch, the theft alarm waring light has a built-in vibration sensor. When vibration is sensed, the LED lights will emit a strong blue light. During the day, the LED lights will automatically stop. Threatening State When it senses the vibration within 5 seconds and then senses the vibration 2 times, it will turn on the blinking mode for 10 seconds. When the first vibration is within 10 seconds, and 3 vibrations are sensed again, it will switch to the stop state and enter the alternate flashing mode after about 70 seconds. Alternate Flashing Mode When the switch is turned on and the battery is full, the 6 blue LED lights can flash alternately in the dark. The anti-theft flashing light is only possible to enter the alternate flashing mode in the dark. Easy To Install There is double-sided tape on the back of the product. Use neutral detergent to wipe clean the place where it will be pasted. After the two-sided glue is pasted, it will reach the strongest viscosity in about 24 hours. Please do not stick the double-sided tape on the dirty or rough surface.