diff --git a/show/dance2023/deviceClass.n3 b/show/dance2023/deviceClass.n3
--- a/show/dance2023/deviceClass.n3
+++ b/show/dance2023/deviceClass.n3
@@ -3,10 +3,11 @@
 
 :color              a :DeviceAttr; rdfs:label "color"; :dataType :color .
 :brightness         a :DeviceAttr; rdfs:label "brightness"; :dataType :scalar .
+:white              a :DeviceAttr; rdfs:label "white"; :dataType :scalar .
 :strobe             a :DeviceAttr; rdfs:label "strobe"; :dataType :scalar;
   rdfs:comment "0=none, 1=fastest" .
 :strobeSpeed        a :DeviceAttr; rdfs:label "strobeSpeed"; :dataType :scalar .
-:doNotUse             a :DeviceAttr; rdfs:label "-"; :dataType :scalar .
+:doNotUse           a :DeviceAttr; rdfs:label "-"; :dataType :scalar .
 
 :MegaFlash a :DeviceClass; rdfs:label "Mega Flash" ;
 :doc <https://cdb.s3-us-west-1.amazonaws.com/ItemRelatedFiles/7470/Mega%20Flash%20DMX-JAN2005.pdf>;
@@ -51,7 +52,7 @@
     [ :outputAttr :doNotUse; :dmxOffset 7 ] .
 
 :LedPar54  a :DeviceClass; rdfs:label "LED Par 54 RGBW";
-  :deviceAttr :color;
+  :deviceAttr :color, :white;
   :attr
     [ :outputAttr :master;   :dmxOffset 0 ],
     [ :outputAttr :red;      :dmxOffset 1 ],