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The Lighting Output object allows a third-party BACnet workstation to represent a Lighting Output object in a BACnet field controller. The Lighting Output object represents in a linearized percentage the externally visible characteristics of a lighting output level. By adjusting the present value of this object, you can change the brightness level of banks of controlled lights. Typically, the adjustment value is from 5% to 85%.
User commands to the Lighting Output object provide special lighting-specific functions such as ramping, stepping, and fading. The lighting command also provides a blink-warn mechanism to notify room occupants that the lights are about to turn off. The blink-warning mechanism is internal to the Lighting Output object type and may cause a controlled set of lighting banks to blink on and off or issue a notification.