diff --git a/src/Three.Legacy.js b/src/Three.Legacy.js
index 952d7607b1e15981c7084fdf17801c265e287962..e6acc428ef79e865ddc3846c03254cf9bb4ded74 100644
--- a/src/Three.Legacy.js
+++ b/src/Three.Legacy.js
@@ -269,36 +269,43 @@ Object.defineProperties( THREE.Light.prototype, {
 	},
 	shadowCameraFov: {
 		set: function ( value ) {
+			console.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' );
 			this.shadow.camera.fov = value;
 		}
 	},
 	shadowCameraLeft: {
 		set: function ( value ) {
+			console.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' );
 			this.shadow.camera.left = value;
 		}
 	},
 	shadowCameraRight: {
 		set: function ( value ) {
+			console.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' );
 			this.shadow.camera.right = value;
 		}
 	},
 	shadowCameraTop: {
 		set: function ( value ) {
+			console.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' );
 			this.shadow.camera.top = value;
 		}
 	},
 	shadowCameraBottom: {
 		set: function ( value ) {
+			console.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' );
 			this.shadow.camera.bottom = value;
 		}
 	},
 	shadowCameraNear: {
 		set: function ( value ) {
+			console.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' );
 			this.shadow.camera.near = value;
 		}
 	},
 	shadowCameraFar: {
 		set: function ( value ) {
+			console.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' );
 			this.shadow.camera.far = value;
 		}
 	},
@@ -309,6 +316,7 @@ Object.defineProperties( THREE.Light.prototype, {
 	},
 	shadowBias: {
 		set: function ( value ) {
+			console.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' );
 			this.shadow.bias = value;
 		}
 	},
@@ -319,11 +327,13 @@ Object.defineProperties( THREE.Light.prototype, {
 	},
 	shadowMapWidth: {
 		set: function ( value ) {
+			console.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' );
 			this.shadow.mapSize.width = value;
 		}
 	},
 	shadowMapHeight: {
 		set: function ( value ) {
+			console.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' );
 			this.shadow.mapSize.height = value;
 		}
 	}