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Easy-to-adjust daylighting controller

Watt Stopper/Legrand’s new LS101 is a single-zone, daylighting controller designed to switch lights OFF and ON when light levels detected by the unit’s internal light sensor fall above or below factory- or user-defined setpoints.

August 20, 2007  By Energy Management


The LS-101 requires minimal adjustment at startup, as factory-set parameters are appropriate for many applications. During startup, you can see the current light level displayed in footcandles and can establish ON and OFF setpoints. Other user-adjustable parameters include the OFF delay time and deadband range—settings that prevent rapid cycling of the controlled lights during brief and moderate fluctuations of daylighting levels. Depending on placement, the controller can function as either a closed-loop or open-loop system, sensing either a combination of electric and daylight contribution or daylight only. For information, visit: www.wattstopper.com


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