#### 7.2.2.12 IfcLightFixtureTypeEnum

The IfcLightFixtureTypeEnum defines the different types of light fixtures.

> HISTORY New type in IFC2x2.

> IFC4 CHANGE SECURITYLIGHTING added

Enumerated Item Definitions:

- POINTSOURCE: A light fixture that is considered to have negligible area and that emit light with approximately equal intensity in all directions. A light fixture containing a tungsten, halogen or similar bulb is an example of a point source.
- DIRECTIONSOURCE: A light fixture that is considered to have a length or surface area from which it emits light in a direction. A light fixture containing one or more fluorescent lamps is an example of a direction source.
- SECURITYLIGHTING: A light fixture having specific purpose of directing occupants in an emergency, such as an illuminated exit sign or emergency flood light.
- USERDEFINED: User-defined type.
- NOTDEFINED: Undefined type.

XSD Specification:

<xs:simpleType name="IfcLightFixtureTypeEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="pointsource"/>
<xs:enumeration value="directionsource"/>
<xs:enumeration value="securitylighting"/>
<xs:enumeration value="userdefined"/>
<xs:enumeration value="notdefined"/>
</xs:restriction>
</xs:simpleType>

EXPRESS Specification:

TYPE IfcLightFixtureTypeEnum = ENUMERATION OF (
| POINTSOURCE, DIRECTIONSOURCE, SECURITYLIGHTING, USERDEFINED, NOTDEFINED);
END_TYPE;

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