diff --git a/examples/jsm/nodes/lighting/AmbientLightNode.js b/examples/jsm/nodes/lighting/AmbientLightNode.js
index f9181b2d8459b4..46c6389f3df0d9 100644
--- a/examples/jsm/nodes/lighting/AmbientLightNode.js
+++ b/examples/jsm/nodes/lighting/AmbientLightNode.js
@@ -22,6 +22,6 @@ class AmbientLightNode extends AnalyticLightNode {
 
 export default AmbientLightNode;
 
-addLightNode( AmbientLight, AmbientLightNode );
-
 addNodeClass( 'AmbientLightNode', AmbientLightNode );
+
+addLightNode( AmbientLight, AmbientLightNode );
diff --git a/examples/jsm/nodes/lighting/DirectionalLightNode.js b/examples/jsm/nodes/lighting/DirectionalLightNode.js
index 6340d80bc240f1..6683e7578d2a67 100644
--- a/examples/jsm/nodes/lighting/DirectionalLightNode.js
+++ b/examples/jsm/nodes/lighting/DirectionalLightNode.js
@@ -35,6 +35,6 @@ class DirectionalLightNode extends AnalyticLightNode {
 
 export default DirectionalLightNode;
 
-addLightNode( DirectionalLight, DirectionalLightNode );
-
 addNodeClass( 'DirectionalLightNode', DirectionalLightNode );
+
+addLightNode( DirectionalLight, DirectionalLightNode );
diff --git a/examples/jsm/nodes/lighting/HemisphereLightNode.js b/examples/jsm/nodes/lighting/HemisphereLightNode.js
index c7081cf70983a3..ee5d0445b5be1e 100644
--- a/examples/jsm/nodes/lighting/HemisphereLightNode.js
+++ b/examples/jsm/nodes/lighting/HemisphereLightNode.js
@@ -50,6 +50,6 @@ class HemisphereLightNode extends AnalyticLightNode {
 
 export default HemisphereLightNode;
 
-addLightNode( HemisphereLight, HemisphereLightNode );
-
 addNodeClass( 'HemisphereLightNode', HemisphereLightNode );
+
+addLightNode( HemisphereLight, HemisphereLightNode );
diff --git a/examples/jsm/nodes/lighting/IESSpotLightNode.js b/examples/jsm/nodes/lighting/IESSpotLightNode.js
index fd3e657d35b657..214abee385a6e2 100644
--- a/examples/jsm/nodes/lighting/IESSpotLightNode.js
+++ b/examples/jsm/nodes/lighting/IESSpotLightNode.js
@@ -34,6 +34,6 @@ class IESSpotLightNode extends SpotLightNode {
 
 export default IESSpotLightNode;
 
-addLightNode( IESSpotLight, IESSpotLightNode );
-
 addNodeClass( 'IESSpotLightNode', IESSpotLightNode );
+
+addLightNode( IESSpotLight, IESSpotLightNode );
diff --git a/examples/jsm/nodes/lighting/LightsNode.js b/examples/jsm/nodes/lighting/LightsNode.js
index 8aa539590eac77..9a780f676d8c38 100644
--- a/examples/jsm/nodes/lighting/LightsNode.js
+++ b/examples/jsm/nodes/lighting/LightsNode.js
@@ -119,9 +119,9 @@ export const lightsWithoutWrap = nodeProxy( LightsNode );
 
 export function addLightNode( lightClass, lightNodeClass ) {
 
-	if ( LightNodes.has( lightClass ) ) throw new Error( `Redefinition of light node ${ lightNodeClass.name }` );
-	if ( typeof lightClass !== 'function' || ! lightClass.name ) throw new Error( `Light ${ lightClass.name } is not a class` );
-	if ( typeof lightNodeClass !== 'function' || ! lightNodeClass.name ) throw new Error( `Light node ${ lightNodeClass.name } is not a class` );
+	if ( LightNodes.has( lightClass ) ) throw new Error( `Redefinition of light node ${ lightNodeClass.type }` );
+	if ( typeof lightClass !== 'function' ) throw new Error( `Light ${ lightClass.name } is not a class` );
+	if ( typeof lightNodeClass !== 'function' || ! lightNodeClass.type ) throw new Error( `Light node ${ lightNodeClass.type } is not a class` );
 
 	LightNodes.set( lightClass, lightNodeClass );
 
diff --git a/examples/jsm/nodes/lighting/PointLightNode.js b/examples/jsm/nodes/lighting/PointLightNode.js
index d413c2b8ee46ac..0198e66a0e50d1 100644
--- a/examples/jsm/nodes/lighting/PointLightNode.js
+++ b/examples/jsm/nodes/lighting/PointLightNode.js
@@ -63,6 +63,6 @@ class PointLightNode extends AnalyticLightNode {
 
 export default PointLightNode;
 
-addLightNode( PointLight, PointLightNode );
-
 addNodeClass( 'PointLightNode', PointLightNode );
+
+addLightNode( PointLight, PointLightNode );
diff --git a/examples/jsm/nodes/lighting/SpotLightNode.js b/examples/jsm/nodes/lighting/SpotLightNode.js
index b5d1425c1314a2..bc789e6a6aa6df 100644
--- a/examples/jsm/nodes/lighting/SpotLightNode.js
+++ b/examples/jsm/nodes/lighting/SpotLightNode.js
@@ -84,6 +84,6 @@ class SpotLightNode extends AnalyticLightNode {
 
 export default SpotLightNode;
 
-addLightNode( SpotLight, SpotLightNode );
-
 addNodeClass( 'SpotLightNode', SpotLightNode );
+
+addLightNode( SpotLight, SpotLightNode );