Occupancy/vacancy sensor controlled LED ceiling lights adapt lighting to the presence of occupants. Automatic control of lighting loads is intended to address the challenges of resource conservation. In a world of rising energy costs and shrinking budgets, leveraging the power of sensor-based adaptive lighting to reduce energy consumption is all the rage right now. The widespread adoption of LED technologies has also facilitated the integration of sensors into lighting products. An occupancy or vacancy sensor controlled LED ceiling lights are self-contained lighting systems in which the sensor is integrated into the fixture and modulates the driver output to switch the light on, off, or adjust its illuminance.