Daylight Harvesting & Dimming

In daylit spaces, electric light is often burning needlessly while the sun does the job for free. Daylight harvesting measures the available daylight and dims the electric lighting to suit, keeping the illuminance on the task constant while cutting the energy. The occupant never notices a change in light level; the building simply stops paying for light the sky is already providing. This lesson covers the principle, why dimming beats switching, the savings by zone, and the commissioning that so often decides whether the system delivers.