The light loss factor is a value used to calculate the amount of light lost due to environmental factors, such as dust and ambient temperature.
You can define the light loss factor for a lighting fixture family file (as follows). In a project, you can change the light loss factor of an individual lighting fixture.
To define the light loss factor
- Open the lighting fixture family.
- Click Create tabProperties panel (Family Types).
- For Name, select the family type to modify.
- Scroll down the list to locate the Light Loss Factor parameter, and click in its Value column.
The Light Loss Factor dialog displays.
- Specify the calculation method for Light Loss Factor:
Simple calculation
- Specify as follows:
- For Method, select Simple.
- For Total Light Loss Factor, move the slider to adjust the value between Dimmer and Brighter.
- Click OK.
Advanced calculation
- Specify as follows:
- For Method, select Advanced.
- Under Value, adjust the sliders for each parameter, or enter a value in the text box.
- Click OK.
The Family Types dialog displays the new Light Loss Factor value.
- Click OK.
- Save changes to the lighting fixture family.