readonly attribute SVGAnimatedNumber limitingConeAngle; 

readonly attribute SVGAnimatedNumber pointsAtX; 

readonly attribute SVGAnimatedNumber pointsAtY; 

readonly attribute SVGAnimatedNumber pointsAtZ; 

readonly attribute SVGAnimatedNumber specularExponent; 

readonly attribute SVGAnimatedNumber x; 

readonly attribute SVGAnimatedNumber y; 

readonly attribute SVGAnimatedNumber z;