diff --git a/dart_filament/lib/dart_filament/compatibility/web/interop/dart_filament_js_export_type.dart b/dart_filament/lib/dart_filament/compatibility/web/interop/dart_filament_js_export_type.dart
index 7d335e4c..8749b690 100644
--- a/dart_filament/lib/dart_filament/compatibility/web/interop/dart_filament_js_export_type.dart
+++ b/dart_filament/lib/dart_filament/compatibility/web/interop/dart_filament_js_export_type.dart
@@ -88,10 +88,31 @@ class DartFilamentJSExportViewer {
       double dirX,
       double dirY,
       double dirZ,
+      double falloffRadius, 
+      double spotLightConeInner,
+      double spotLightConeOuter,
+      double sunAngularRadius,
+      double sunHaloSize,
+      double sunHaloFallof,
       bool castShadows) {
     return viewer
-        .addLight(type, colour, intensity, posX, posY, posZ, dirX, dirY, dirZ,
-            castShadows)
+        .addLight(
+          LightType.values[type],
+          colour,
+          intensity,
+          posX,
+          posY,
+          posZ,
+          dirX,
+          dirY,
+          dirZ,
+          falloffRadius:falloffRadius,
+          spotLightConeInner:spotLightConeInner,
+          spotLightConeOuter: spotLightConeOuter,
+          sunAngularRadius: sunAngularRadius,
+          sunHaloSize: sunHaloSize,
+          sunHaloFallof: sunHaloFallof,
+          castShadows: castShadows)
         .then((entity) => entity.toJS)
         .toJS;
   }
diff --git a/dart_filament/lib/dart_filament/compatibility/web/interop/dart_filament_js_extension_type.dart b/dart_filament/lib/dart_filament/compatibility/web/interop/dart_filament_js_extension_type.dart
index 5daa72c9..2a7ce79a 100644
--- a/dart_filament/lib/dart_filament/compatibility/web/interop/dart_filament_js_extension_type.dart
+++ b/dart_filament/lib/dart_filament/compatibility/web/interop/dart_filament_js_extension_type.dart
@@ -63,7 +63,13 @@ extension type DartFilamentJSShim(JSObject _) implements JSObject {
     double dirX,
     double dirY,
     double dirZ,
-    bool castShadows,
+    double falloffRadius, 
+    double spotLightConeInner,
+    double spotLightConeOuter,
+    double sunAngularRadius,
+    double sunHaloSize,
+    double sunHaloFallof,
+    bool castShadows
   );
 
   @JS('removeLight')
diff --git a/dart_filament/lib/dart_filament/compatibility/web/interop/js_interop_filament_viewer.dart b/dart_filament/lib/dart_filament/compatibility/web/interop/js_interop_filament_viewer.dart
index b54dfb06..14bb7dd5 100644
--- a/dart_filament/lib/dart_filament/compatibility/web/interop/js_interop_filament_viewer.dart
+++ b/dart_filament/lib/dart_filament/compatibility/web/interop/js_interop_filament_viewer.dart
@@ -1,5 +1,6 @@
 import 'dart:js_interop';
 import 'dart:js_interop_unsafe';
+import 'dart:math';
 
 import 'package:animation_tools_dart/animation_tools_dart.dart';
 import 'package:dart_filament/dart_filament/abstract_filament_viewer.dart';
@@ -103,7 +104,7 @@ class JsInteropFilamentViewer implements AbstractFilamentViewer {
 
   @override
   Future<FilamentEntity> addLight(
-      int type,
+      LightType type,
       double colour,
       double intensity,
       double posX,
@@ -112,10 +113,18 @@ class JsInteropFilamentViewer implements AbstractFilamentViewer {
       double dirX,
       double dirY,
       double dirZ,
-      bool castShadows) async {
+       {
+        double falloffRadius=1.0,
+        double spotLightConeInner=pi/8,
+        double spotLightConeOuter=pi/4,
+        double sunAngularRadius=0.545,
+        double sunHaloSize=10.0,
+        double sunHaloFallof=80.0,
+        bool castShadows=true
+      }) async {
     return (await _jsObject
-            .addLight(type, colour, intensity, posX, posY, posZ, dirX, dirY,
-                dirZ, castShadows)
+            .addLight(type.index, colour, intensity, posX, posY, posZ, dirX, dirY,
+                dirZ, falloffRadius, spotLightConeInner, spotLightConeOuter, sunAngularRadius, sunHaloSize, sunHaloFallof, castShadows)
             .toDart)
         .toDartInt;
   }
diff --git a/dart_filament/lib/dart_filament/filament_viewer_impl.dart b/dart_filament/lib/dart_filament/filament_viewer_impl.dart
index d494e66a..cf33f4fc 100644
--- a/dart_filament/lib/dart_filament/filament_viewer_impl.dart
+++ b/dart_filament/lib/dart_filament/filament_viewer_impl.dart
@@ -125,10 +125,10 @@ class FilamentViewer extends AbstractFilamentViewer {
 
     await setCameraManipulatorOptions(zoomSpeed: 10.0);
     
-    final out = calloc<Int32>(3);
+    final out = allocator<Int32>(3);
     get_gizmo(_sceneManager!, out);
     _gizmo = Gizmo(out[0], out[1], out[2], this);
-    calloc.free(out);
+    allocator.free(out);
 
     this._initialized.complete(true);
   }