YEELIGHT CRYSTAL LED CEILING LIGHT MINILight Sensor & Human Body Motion Sensor: The Crystal Mini uses a Fresnel Lens and infrared sensors to automatically turn on when it detects people come by. 150cm Infrared Radius. After 60 seconds, the light will automatically turn off if no motion is detected. The Crystal Mini also uses a light sensor to automatically turn off during the daytime, saving you electricity. Insect Proof: Porches and balconies attract many insects during the summer. With