diff --git a/include/threepp/lights/AmbientLight.hpp b/include/threepp/lights/AmbientLight.hpp
index 3db47fd9..98c384d2 100644
--- a/include/threepp/lights/AmbientLight.hpp
+++ b/include/threepp/lights/AmbientLight.hpp
@@ -18,6 +18,11 @@ namespace threepp {
 
     protected:
         explicit AmbientLight(const Color& color, std::optional<float> intensity);
+
+        std::shared_ptr<Object3D> createDefault() override {
+
+            return create();
+        }
     };
 
 }// namespace threepp
diff --git a/include/threepp/lights/DirectionalLight.hpp b/include/threepp/lights/DirectionalLight.hpp
index fa07327b..4c89a743 100644
--- a/include/threepp/lights/DirectionalLight.hpp
+++ b/include/threepp/lights/DirectionalLight.hpp
@@ -15,10 +15,17 @@ namespace threepp {
 
         void dispose() override;
 
+        void copy(const Object3D& source, bool recursive) override;
+
         static std::shared_ptr<DirectionalLight> create(const Color& color = 0xffffff, std::optional<float> intensity = std::nullopt);
 
     protected:
         DirectionalLight(const Color& color, std::optional<float> intensity);
+
+        std::shared_ptr<Object3D> createDefault() override {
+
+            return create();
+        }
     };
 
 }// namespace threepp
diff --git a/include/threepp/lights/HemisphereLight.hpp b/include/threepp/lights/HemisphereLight.hpp
index 1b629504..5e65ca27 100644
--- a/include/threepp/lights/HemisphereLight.hpp
+++ b/include/threepp/lights/HemisphereLight.hpp
@@ -14,10 +14,17 @@ namespace threepp {
 
         [[nodiscard]] std::string type() const override;
 
+        void copy(const Object3D& source, bool recursive) override;
+
         static std::shared_ptr<HemisphereLight> create(const Color& skyColor = 0xffffff, const Color& groundColor = 0xffffff, std::optional<float> intensity = std::nullopt);
 
     protected:
         HemisphereLight(const Color& skyColor, const Color& groundColor, std::optional<float> intensity);
+
+        std::shared_ptr<Object3D> createDefault() override {
+
+            return create();
+        }
     };
 
 }// namespace threepp
diff --git a/include/threepp/lights/Light.hpp b/include/threepp/lights/Light.hpp
index ddaf560f..3977f24e 100644
--- a/include/threepp/lights/Light.hpp
+++ b/include/threepp/lights/Light.hpp
@@ -18,6 +18,8 @@ namespace threepp {
 
         [[nodiscard]] std::string type() const override;
 
+        void copy(const Object3D& source, bool recursive) override;
+
         virtual void dispose();
 
     protected:
diff --git a/include/threepp/lights/PointLight.hpp b/include/threepp/lights/PointLight.hpp
index 85d03b67..d9821946 100644
--- a/include/threepp/lights/PointLight.hpp
+++ b/include/threepp/lights/PointLight.hpp
@@ -22,6 +22,8 @@ namespace threepp {
 
         void dispose() override;
 
+        void copy(const Object3D& source, bool recursive) override;
+
         static std::shared_ptr<PointLight> create(const Color& color = 0xffffff, std::optional<float> intensity = std::nullopt, float distance = 0, float decay = 1);
 
     protected:
diff --git a/include/threepp/lights/SpotLight.hpp b/include/threepp/lights/SpotLight.hpp
index 3c1a3b17..3420cd2f 100644
--- a/include/threepp/lights/SpotLight.hpp
+++ b/include/threepp/lights/SpotLight.hpp
@@ -25,10 +25,17 @@ namespace threepp {
 
         void dispose() override;
 
+        void copy(const Object3D& source, bool recursive) override;
+
         static std::shared_ptr<SpotLight> create(const Color& color = 0xffffff, std::optional<float> intensity = std::nullopt, float distance = 0, float angle = math::PI / 3, float penumbra = 0, float decay = 1);
 
     protected:
         SpotLight(const Color& color, std::optional<float> intensity, float distance, float angle, float penumbra, float decay);
+
+        std::shared_ptr<Object3D> createDefault() override {
+
+            return create();
+        }
     };
 
 }// namespace threepp
diff --git a/src/threepp/lights/DirectionalLight.cpp b/src/threepp/lights/DirectionalLight.cpp
index c98e3a05..7e26ab27 100644
--- a/src/threepp/lights/DirectionalLight.cpp
+++ b/src/threepp/lights/DirectionalLight.cpp
@@ -25,6 +25,12 @@ void DirectionalLight::dispose() {
     this->shadow->dispose();
 }
 
+void DirectionalLight::copy(const Object3D& source, bool recursive) {
+    Light::copy(source, recursive);
+
+    // TODO
+}
+
 std::shared_ptr<DirectionalLight> DirectionalLight::create(const Color& color, std::optional<float> intensity) {
 
     return std::shared_ptr<DirectionalLight>(new DirectionalLight(color, intensity));
diff --git a/src/threepp/lights/HemisphereLight.cpp b/src/threepp/lights/HemisphereLight.cpp
index 4c7a2dd7..9e76a976 100644
--- a/src/threepp/lights/HemisphereLight.cpp
+++ b/src/threepp/lights/HemisphereLight.cpp
@@ -18,6 +18,15 @@ std::string HemisphereLight::type() const {
     return "HemisphereLight";
 }
 
+void HemisphereLight::copy(const Object3D& source, bool recursive) {
+    Light::copy(source, recursive);
+
+    if (auto l = source.as<HemisphereLight>()) {
+
+        groundColor.copy(l->groundColor);
+    }
+}
+
 std::shared_ptr<HemisphereLight> HemisphereLight::create(const Color& skyColor, const Color& groundColor, std::optional<float> intensity) {
 
     return std::shared_ptr<HemisphereLight>(new HemisphereLight(skyColor, groundColor, intensity));
diff --git a/src/threepp/lights/Light.cpp b/src/threepp/lights/Light.cpp
index 6c42764e..8397c98e 100644
--- a/src/threepp/lights/Light.cpp
+++ b/src/threepp/lights/Light.cpp
@@ -13,4 +13,14 @@ std::string Light::type() const {
     return "Light";
 }
 
+void Light::copy(const Object3D& source, bool recursive) {
+    Object3D::copy(source, recursive);
+
+    if (const auto l = source.as<Light>()) {
+
+        color.copy(l->color);
+        intensity = l->intensity;
+    }
+}
+
 void Light::dispose() {}
diff --git a/src/threepp/lights/PointLight.cpp b/src/threepp/lights/PointLight.cpp
index 89c6a332..47f3c79d 100644
--- a/src/threepp/lights/PointLight.cpp
+++ b/src/threepp/lights/PointLight.cpp
@@ -37,6 +37,16 @@ void PointLight::dispose() {
     this->shadow->dispose();
 }
 
+void PointLight::copy(const Object3D& source, bool recursive) {
+    Light::copy(source, recursive);
+
+    if (auto l = source.as<PointLight>()) {
+
+        this->distance = l->distance;
+        this->decay = l->decay;
+    }
+}
+
 std::shared_ptr<PointLight> PointLight::create(const Color& color, std::optional<float> intensity, float distance, float decay) {
 
     return std::shared_ptr<PointLight>(new PointLight(color, intensity, distance, decay));
diff --git a/src/threepp/lights/SpotLight.cpp b/src/threepp/lights/SpotLight.cpp
index 8a0e2fd6..bd5ae08e 100644
--- a/src/threepp/lights/SpotLight.cpp
+++ b/src/threepp/lights/SpotLight.cpp
@@ -38,6 +38,18 @@ void SpotLight::dispose() {
     this->shadow->dispose();
 }
 
+void SpotLight::copy(const Object3D& source, bool recursive) {
+    Light::copy(source, recursive);
+
+    if (auto l = source.as<SpotLight>()) {
+
+        this->distance = l->distance;
+        this->angle = l->angle;
+        this->penumbra = l->penumbra;
+        this->decay = l->decay;
+    }
+}
+
 std::shared_ptr<SpotLight> SpotLight::create(const Color& color, std::optional<float> intensity, float distance, float angle, float penumbra, float decay) {
 
     return std::shared_ptr<SpotLight>(new SpotLight(color, intensity, distance, angle, penumbra, decay));