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Lighting Groups

This section describes lighting groups, which are used for energy calculations.

Common Lighting Group Information

The values that can be specified for lighting groups are listed below.

  •  ☐ Subtract Area from Room Area Whether the area occupied by the lights in this lighting group is subtracted from the room area. This will affect energy calculations.

  •  Height: The height of the lighting group, if it is a vertical area. See the Distance Input Format section for more information about specifying this height.

  •  LF Mounting Height: The height at which the light fixtures in the lighting group are mounted. See the Distance Input Format section for more information about specifying this height.

  •  LF Throw Distance: The distance light extends from light fixtures in the lighting group area. See the Distance Input Format section for more information about specifying this distance.

  •  Lighting Power Density: The amount of light allowed for the area.

  •  Illuminance Category: ▾ The illuminance category for the group as defined in the IESNA Lighting Handbook. The categories are based upon the type of task being performed in the area. Lower letters correspond to lower foot-candle levels. Higher letters correspond to higher foot-candle levels.