The microwave sensor ceiling light is a lighting fixture designed for indoor use, with a diameter of 33cm and an IP20 rating. It has a power output of 18W and provides a bright and efficient illumination of up to 1950 lumens. This light is equipped with a microwave sensor that can detect motion within a range of 6m to 12m, which is adjustable. The time delay settings can be adjusted to 5s, 60s, 180s, or 600s, allowing you to choose the optimal length of time for the light to remain on after motion is detected. The ambient light sensitivity of the sensor can also be adjusted, with a range of less than 30 LUX. This means that the sensor will only activate the light when the ambient light levels are below the set value, which helps to conserve energy and prolong the life of the light. Overall, this microwave sensor ceiling light is a convenient and energy-efficient lighting solution for indoor spaces, such as hallways, staircases, and other areas where motion detection is desirable. ExtraStar 18W LED Microwave Sensor Ceiling Light Cold White 6500K (33cm Dia)