A system (found on many GM vehicles) which automatically brings the headlamps up to full intensity — or turns them and other exterior lights on if they are not part of the Daytime Running Lamp functio [..]

is a built-in feature of every camera found on AIRAYA.com. ALC indicates the image sensor's ability to automatically adjust in diverse lighting conditions to yield the most vivid video image possible.

When using an auto-iris lens, the ALC circuitry samples the illumination level and automatically adjusts the iris to create the proper sized aperture for proper exposure.

The process by which the illumination incident upon the face of a pickup device is automatically adjusted as a function of scene brightness.