Parameters For Lighting Fixtures And Light Sources - Autodesk 24000-000000-9860 - Revit Architecture - PC User Manual

You can define different parameter values for different family types. See
366.
4 Define parameters as desired.
See

Parameters for Lighting Fixtures and Light Sources

5 Click Apply.
6 (Optional) Repeat this process for other family types defined for the lighting fixture family: For
Name, select another family type. Define its parameters. Click Apply.
7 Click OK.
8 Save changes to the lighting fixture family.
Parameters for Lighting Fixtures and Light Sources
You can change parameters for lighting fixtures and their light sources when defining a lighting fixture in
the Family Editor, or when modifying a lighting fixture in a building model. (See
Fixture Family on page 1115 or
Parameter
Electrical - Lighting
Calculate Coefficient of Utilization (default)
Coefficient of Utilization (default)
Electrical - Loads
Apparent Load
Dimensions: These parameters do not affect rendered images.
Light Source Symbol Size
Changing a Lighting Fixture in a Building Model
Description
A value used by Revit MEP to indicate that the Coefficient of Utilization
will be calculated for the lighting fixture by default. In a project, you
can change this default behavior by changing instance properties.
A value used by Revit MEP to define the efficiency of a lighting fixture
in transferring luminous energy to the work plane in a particular area.
This value shows the percentage of lumens that reach the work plane
after light is lost due to the fixture's efficiency at transmitting light,
the room proportions, and the ability of room surfaces to reflect light.
If you select Calculate Coefficient of Utilization (default), this parameter
is read-only. If you clear Calculate Coefficient of Utilization (default),
you can enter a value between 0 and 1, or enter a formula.
In a family, this parameter defines the default value for the lighting
fixture. In a project, you can change the default in instance properties.
A value used by Revit MEP to define the real and reactive power used
by a fixture. To determine Apparent Load, multiply the apparent cur-
rent by the voltage. This parameter is measured in volt amps (VA).
The size of the symbol that represents the light source in 2D and 3D
views, extending from the boundary of the Emit from Shape outwards.
For example, suppose you define a light source with an Emit from
Shape of circle and an Emit from Circle Diameter of 500 mm. If you
specify a Light Source Symbol Size of 200 mm, in a 2D view, Revit
Architecture shows a light source symbol that is 900 mm in diameter
(200+500+200). This parameter is available when the Emit from Shape
Creating and Modifying Lighting Fixtures | 1119
Family Types
on page 1119.
Modifying a Lighting
on page 1129.)
on page