| Attribute | Type | Defined By |
|---|
| Name | IfcLabel (STRING) | IfcLightSource |
| LightColour | IfcColourRgb (ENTITY) | IfcLightSource |
| AmbientIntensity | IfcNormalisedRatioMeasure (REAL) | IfcLightSource |
| Intensity | IfcNormalisedRatioMeasure (REAL) | IfcLightSource |
| POSITION | IfcAxis2Placement3D (ENTITY) | IfcLightSourceGoniometric |
| ColourAppearance | IfcColourRgb (ENTITY) | IfcLightSourceGoniometric |
| ColourTemperature | IfcThermodynamicTemperatureMeasure (REAL) | IfcLightSourceGoniometric |
| LuminousFlux | IfcLuminousFluxMeasure (REAL) | IfcLightSourceGoniometric |
| LightEmissionSource | IfcLightEmissionSourceEnum (ENUM) | IfcLightSourceGoniometric |
| LightDistributionDataSource | IfcLightDistributionDataSourceSelect (SELECT) | IfcLightSourceGoniometric |