diff --git a/src/main/java/com/beowulfe/hap/accessories/Lightbulb.java b/src/main/java/com/beowulfe/hap/accessories/Lightbulb.java
index 58f350618..e1ca0d323 100644
--- a/src/main/java/com/beowulfe/hap/accessories/Lightbulb.java
+++ b/src/main/java/com/beowulfe/hap/accessories/Lightbulb.java
@@ -1,9 +1,12 @@
 package com.beowulfe.hap.accessories;
 
 import com.beowulfe.hap.*;
+import com.beowulfe.hap.accessories.characteristics.Brightness;
+import com.beowulfe.hap.accessories.characteristics.Color;
 import com.beowulfe.hap.impl.services.LightbulbService;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
 
 /**
@@ -43,4 +46,16 @@ default Collection<Service> getServices() {
 
   /** Unsubscribes from changes in the binary state of the light. */
   void unsubscribeLightbulbPowerState();
+
+  /** returns the optional implementation of Brightness */
+  default Optional<Brightness> getBrightnessCharacteristic() {
+    Optional<Brightness> result = Optional.empty();
+    return result;
+  }
+
+  /** returns the optional implementation of Color */
+  default Optional<Color> getColorCharacteristics() {
+    Optional<Color> result = Optional.empty();
+    return result;
+  }
 }
diff --git a/src/main/java/com/beowulfe/hap/accessories/DimmableLightbulb.java b/src/main/java/com/beowulfe/hap/accessories/characteristics/Brightness.java
similarity index 84%
rename from src/main/java/com/beowulfe/hap/accessories/DimmableLightbulb.java
rename to src/main/java/com/beowulfe/hap/accessories/characteristics/Brightness.java
index e83b592e5..3cb280c68 100644
--- a/src/main/java/com/beowulfe/hap/accessories/DimmableLightbulb.java
+++ b/src/main/java/com/beowulfe/hap/accessories/characteristics/Brightness.java
@@ -1,15 +1,9 @@
-package com.beowulfe.hap.accessories;
+package com.beowulfe.hap.accessories.characteristics;
 
 import com.beowulfe.hap.HomekitCharacteristicChangeCallback;
 import java.util.concurrent.CompletableFuture;
 
-/**
- * Extends {@link Lightbulb} with brightness values.
- *
- * @author Andy Lintner
- */
-public interface DimmableLightbulb extends Lightbulb {
-
+public interface Brightness {
   /**
    * Retrieves the current brightness of the light
    *
diff --git a/src/main/java/com/beowulfe/hap/accessories/ColorfulLightbulb.java b/src/main/java/com/beowulfe/hap/accessories/characteristics/Color.java
similarity index 88%
rename from src/main/java/com/beowulfe/hap/accessories/ColorfulLightbulb.java
rename to src/main/java/com/beowulfe/hap/accessories/characteristics/Color.java
index d218bece4..9bcf3bdce 100644
--- a/src/main/java/com/beowulfe/hap/accessories/ColorfulLightbulb.java
+++ b/src/main/java/com/beowulfe/hap/accessories/characteristics/Color.java
@@ -1,16 +1,15 @@
-package com.beowulfe.hap.accessories;
+package com.beowulfe.hap.accessories.characteristics;
 
 import com.beowulfe.hap.HomekitCharacteristicChangeCallback;
 import java.util.concurrent.CompletableFuture;
 
 /**
- * Extends {@link Lightbulb} with color settings. This will usually be implemented along with {@link
- * DimmableLightbulb}, but not necessarily so.
+ * Extends a Lightbulb with color settings. This will usually be implemented along with {@link
+ * Brightness}, but not necessarily so.
  *
  * @author Andy Lintner
  */
-public interface ColorfulLightbulb extends Lightbulb {
-
+public interface Color {
   /**
    * Retrieves the current hue of the light.
    *
diff --git a/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/BrightnessCharacteristic.java b/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/BrightnessCharacteristic.java
index 3cd303332..da0bca52f 100644
--- a/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/BrightnessCharacteristic.java
+++ b/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/BrightnessCharacteristic.java
@@ -1,7 +1,7 @@
 package com.beowulfe.hap.impl.characteristics.lightbulb;
 
 import com.beowulfe.hap.HomekitCharacteristicChangeCallback;
-import com.beowulfe.hap.accessories.DimmableLightbulb;
+import com.beowulfe.hap.accessories.characteristics.Brightness;
 import com.beowulfe.hap.characteristics.EventableCharacteristic;
 import com.beowulfe.hap.characteristics.IntegerCharacteristic;
 import java.util.concurrent.CompletableFuture;
@@ -9,9 +9,9 @@
 public class BrightnessCharacteristic extends IntegerCharacteristic
     implements EventableCharacteristic {
 
-  private final DimmableLightbulb lightbulb;
+  private final Brightness lightbulb;
 
-  public BrightnessCharacteristic(DimmableLightbulb lightbulb) {
+  public BrightnessCharacteristic(Brightness lightbulb) {
     super(
         "00000008-0000-1000-8000-0026BB765291",
         true,
diff --git a/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/HueCharacteristic.java b/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/HueCharacteristic.java
index 561a74b39..ed7c92e6a 100644
--- a/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/HueCharacteristic.java
+++ b/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/HueCharacteristic.java
@@ -1,16 +1,16 @@
 package com.beowulfe.hap.impl.characteristics.lightbulb;
 
 import com.beowulfe.hap.HomekitCharacteristicChangeCallback;
-import com.beowulfe.hap.accessories.ColorfulLightbulb;
+import com.beowulfe.hap.accessories.characteristics.Color;
 import com.beowulfe.hap.characteristics.EventableCharacteristic;
 import com.beowulfe.hap.characteristics.FloatCharacteristic;
 import java.util.concurrent.CompletableFuture;
 
 public class HueCharacteristic extends FloatCharacteristic implements EventableCharacteristic {
 
-  private final ColorfulLightbulb lightbulb;
+  private final Color lightbulb;
 
-  public HueCharacteristic(ColorfulLightbulb lightbulb) {
+  public HueCharacteristic(Color lightbulb) {
     super(
         "00000013-0000-1000-8000-0026BB765291",
         true,
diff --git a/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/SaturationCharacteristic.java b/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/SaturationCharacteristic.java
index 29d39da3b..a927c40d4 100644
--- a/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/SaturationCharacteristic.java
+++ b/src/main/java/com/beowulfe/hap/impl/characteristics/lightbulb/SaturationCharacteristic.java
@@ -1,7 +1,7 @@
 package com.beowulfe.hap.impl.characteristics.lightbulb;
 
 import com.beowulfe.hap.HomekitCharacteristicChangeCallback;
-import com.beowulfe.hap.accessories.ColorfulLightbulb;
+import com.beowulfe.hap.accessories.characteristics.Color;
 import com.beowulfe.hap.characteristics.EventableCharacteristic;
 import com.beowulfe.hap.characteristics.FloatCharacteristic;
 import java.util.concurrent.CompletableFuture;
@@ -9,9 +9,9 @@
 public class SaturationCharacteristic extends FloatCharacteristic
     implements EventableCharacteristic {
 
-  private final ColorfulLightbulb lightbulb;
+  private final Color lightbulb;
 
-  public SaturationCharacteristic(ColorfulLightbulb lightbulb) {
+  public SaturationCharacteristic(Color lightbulb) {
     super(
         "0000002F-0000-1000-8000-0026BB765291",
         true,
diff --git a/src/main/java/com/beowulfe/hap/impl/services/LightbulbService.java b/src/main/java/com/beowulfe/hap/impl/services/LightbulbService.java
index b8173d9d9..259a9be25 100644
--- a/src/main/java/com/beowulfe/hap/impl/services/LightbulbService.java
+++ b/src/main/java/com/beowulfe/hap/impl/services/LightbulbService.java
@@ -1,7 +1,5 @@
 package com.beowulfe.hap.impl.services;
 
-import com.beowulfe.hap.accessories.ColorfulLightbulb;
-import com.beowulfe.hap.accessories.DimmableLightbulb;
 import com.beowulfe.hap.accessories.Lightbulb;
 import com.beowulfe.hap.impl.characteristics.common.PowerStateCharacteristic;
 import com.beowulfe.hap.impl.characteristics.lightbulb.BrightnessCharacteristic;
@@ -23,13 +21,16 @@ public LightbulbService(Lightbulb lightbulb, String serviceName) {
             c -> lightbulb.subscribeLightbulbPowerState(c),
             () -> lightbulb.unsubscribeLightbulbPowerState()));
 
-    if (lightbulb instanceof DimmableLightbulb) {
-      addCharacteristic(new BrightnessCharacteristic((DimmableLightbulb) lightbulb));
-    }
+    lightbulb
+        .getBrightnessCharacteristic()
+        .ifPresent(brightness -> addCharacteristic(new BrightnessCharacteristic(brightness)));
 
-    if (lightbulb instanceof ColorfulLightbulb) {
-      addCharacteristic(new HueCharacteristic((ColorfulLightbulb) lightbulb));
-      addCharacteristic(new SaturationCharacteristic((ColorfulLightbulb) lightbulb));
-    }
+    lightbulb
+        .getColorCharacteristics()
+        .ifPresent(
+            color -> {
+              addCharacteristic(new HueCharacteristic(color));
+              addCharacteristic(new SaturationCharacteristic(color));
+            });
   }
 }