LIGHTING CONTROLS

consist of the following:

ASTRONOMICAL TIME-SWITCH CONTROL

is an Automatic Time-Switch Control that contr ols lighting based on the time of day and astronomical events such as sunset and sunrise, accounting for geographic location and calendar date.

AUTOMATIC DAYLIGHT CONTROL

uses one or more photosensors to detect changes in daylight illumination and then automatically adjusts the luminous flux of the electric lighting system in response.

AUTOMATIC MULTI-LEVEL DAYLIGHT CONTROL

adjusts the luminous flux of the electric lighting system in either a series of steps or by continuous dimming in response to available daylight. This kind of control uses one or more photosensors to detect changes in daylight illumination and then automatically adjusts the electric lighting levels in response.

AUTOMATIC SCHEDULING CONTROL

is a time-based lighting control device or system that is capable of being programmed to turn off outdoor luminaire power for a portion of the night and the day.

AUTOMATIC TIME SWITCH CONTROL

controls lighting based on the time of day.

CAPTIVE-KEY OVERRIDE

is a type of lighting control in which the key that activates the override cannot be released when the lights are in the on position.

COUNTDOWN TIMER SWITCH

turns lighting or other loads ON when activated using one or more selectable count-down time periods and then automatically turns lighting or other loads OFF when the selected time period had elapsed.

DIMMER

varies the luminous flux of the electric lighting system by changing the power delivered to that lighting system.

DIMMER, FULL-RANGE

or Continuous Dimmer, means a dimmer that varies the luminous flux of the electric lighting system over a coninuous range from the device's maximum light output to the device's minimum light output without visually apparent abrupt changes in light level between the various steps.

DIMMER, STEPPED

varies the luminous flux of the electric lighting system in one or more predetermined discrete steps between maximum light output and OFF with changes in light level between adjacent steps being visually apparent.

DIMMER, FORWARD PHASE CUT

varies the luminous flux of the electric lighting system in which a portion of the alternating current voltage waveform supplying to the light source is removed.

LIGHTING CONTROL, SELF CONTAINED

is a unitary lighting control module that requires no additional components to be a fully functional lighting control.

LIGHTING CONTROL SYSTEM

requires two or more components to be installed in the building to provide all of the functionality required to make up a fully functional and compliant lighting control.

MULTI-LEVEL ASTRONOMICAL TIME SWITCH

is an Astronomical Time Switch Control that reduces lighting power in multiple steps.

MULTI-LEVEL LIGHTING CONTROL

reduces power going to a lighting system in multiple steps.

MULTISCENE PROGRAMMABLE CONTROL

allows for two or more pre-defined lighting settings, in addition to all-OFF, for two or more groups of luminaires to suit multiple activities in the space.

NEMA SSL 7A

is the National Electrical Manufacturers Association document titled “Phase Cut Dimming for Solid State Lighting: Basic Compatibility,” 2015. (NEMA SSL 7A-2015).

OCCUPANT SENSING CONTROLS

automatically control levels of illumination, allow for manual operation, and consist of the following types:

MOTION SENSOR

is used outdoors, automatically turns lights OFF after an area is vacated of occupants, and automatically turns the lights ON when the area is occupied.

OCCUPANT SENSOR

is used indoors and automatically turns lights OFF after an area is vacated of occupants and is capable of automatically turning the lighting load ON when an area is occupied.

PARTIAL-ON OCCUPANT/MOTION SENSOR

automatically turns lights OFF after an area is vacated of occupants and is capable of automatically or manually turning ON part of the lighting load when an area is occupied.

PARTIAL-OFF OCCUPANT/MOTION SENSOR

automatically turns OFF part of the lighting load after an area is vacated of occupants and is capable of automatically turning ON the lighting load when an area is occupied.

VACANCY SENSOR

automatically turns lights OFF after an area is vacated of occupants but requires lights to be turned ON manually.

PART-NIGHT OUTDOOR LIGHTING CONTROL

is a light sensing and time-based lighting control device or system that is programmed to reduce or turn off the lighting power to an outdoor luminaire for a portion of the night.

PHOTO CONTROL

automatically turns lights ON and OFF, or automatically adjusts lighting levels, in response to the amount of daylight that is available. A Photo Control may also be one component of a field assembled lighting system, the component having the capability to provide a signal proportional to the amount of daylight to a Lighting Control System to dim or brighten the electric lights in response.

SHUT-OFF CONTROLS

is any lighting control capable of automatically shutting OFF the lighting in a space when the space is typically unoccupied.