Lumen maintenance control

Lumen maintenance control

Allows lighting to be dimmed automatically when it is new and through photoelectric sensing, to be increased gradually over time as lamps age and luminaires get dirty. It is similar to equipment that controls daylighting, and most controls can be programmed to do both.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
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These methods include dimming, installation of ballasts or LED power supplies with a flexible range of ballast factors, lumen maintenance controls, and settings for both highland low-end trim on the control system's output.
Task tuning demonstrates energy savings potential: a pilot study of commercial buildings examines this localized lighting approach
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