Revit Lighting Fixture Type Catalogs

This post covers the process of developing lighting fixture type catalogs with correct Photometric Parameters. Having correct Lighting Fixture parameters along with correct IES files, allows Revit to calculate average estimated illumination without the use of third party software.

Using simple math and something called concatenation one can easily add many lamping options to lighting fixture type catalogs.

First, let’s look at the photometric parameter in Revit named Initial Intensity. Initial intensity includes settings for wattage and efficacy, the physical attributes of intensity that determine lux (foot-candles). Here is an HTML version of the same calculator that runs in Revit.

Luminous Flux = Wattage ÷ Efficacy
Illuminance = Luminous Intensity ÷ 9.29 (1 square which is equal to approximately 9.29 square metres)
Luminous Intensity = Luminous Flux ÷ 12.5663706 (Solid angle of a complete sphere or 4π steradian which is approximately 12.5663706)

 

Wattage##ELECTRICAL_WATTAGE##WATTS

Efficacy##ELECTRICAL_EFFICACY##LUMENS_PER_WATT

Luminous Flux##ELECTRICAL_LUMINOUS_FLUX##LUMENS

Luminous Intensity##ELECTRICAL_LUMINOUS_INTENSITY##CANDELAS

Illuminance##ELECTRICAL_ILLUMINANCE##LUX

 

Using simple math and something called concatenation one can easily add many lamping options to lighting fixture type catalogs.