A “Sensor Light Switch” is an advanced type of light switch that automatically turns on or off the lights based on the presence or absence of motion or changes in ambient light levels. The switch is equipped with sensors, such as motion sensors or light sensors, that detect movement or changes in light and trigger the lights accordingly. When motion is detected or the ambient light levels fall below a certain threshold, the sensor activates the switch, turning on the lights. Conversely, when no motion is detected or the ambient light levels are sufficient, the sensor deactivates the switch, turning off the lights. Sensor light switches are commonly used in outdoor lighting, security systems, and energy-efficient lighting setups, as they help save energy by ensuring that lights are only on when needed.