diff --git a/homeassistant/components/osramlightify/light.py b/homeassistant/components/osramlightify/light.py
index e1b204115e6..d3c529c738e 100644
--- a/homeassistant/components/osramlightify/light.py
+++ b/homeassistant/components/osramlightify/light.py
@@ -187,7 +187,6 @@ class Luminary(LightEntity):
         self._changed = changed
 
         self._unique_id = None
-        self._supported_features = []
         self._effect_list = []
         self._is_on = False
         self._available = True
@@ -205,9 +204,9 @@ class Luminary(LightEntity):
         """Get a unique ID (not implemented)."""
         raise NotImplementedError
 
-    def _get_supported_color_modes(self):
+    def _get_supported_color_modes(self) -> set[ColorMode]:
         """Get supported color modes."""
-        color_modes = set()
+        color_modes: set[ColorMode] = set()
         if "temp" in self._luminary.supported_features():
             color_modes.add(ColorMode.COLOR_TEMP)
 
@@ -222,7 +221,7 @@ class Luminary(LightEntity):
 
         return color_modes
 
-    def _get_supported_features(self):
+    def _get_supported_features(self) -> LightEntityFeature | int:
         """Get list of supported features."""
         features = 0
         if "lum" in self._luminary.supported_features():
@@ -271,11 +270,6 @@ class Luminary(LightEntity):
         """Return True if the device is on."""
         return self._is_on
 
-    @property
-    def supported_features(self):
-        """List of supported features."""
-        return self._supported_features
-
     @property
     def effect_list(self):
         """List of supported effects."""
@@ -360,11 +354,11 @@ class Luminary(LightEntity):
         self._luminary = luminary
         self.update_static_attributes()
 
-    def update_static_attributes(self):
+    def update_static_attributes(self) -> None:
         """Update static attributes of the luminary."""
         self._unique_id = self._get_unique_id()
         self._attr_supported_color_modes = self._get_supported_color_modes()
-        self._supported_features = self._get_supported_features()
+        self._attr_supported_features = self._get_supported_features()
         self._effect_list = self._get_effect_list()
         if ColorMode.COLOR_TEMP in self._attr_supported_color_modes:
             self._min_mireds = color_util.color_temperature_kelvin_to_mired(
@@ -441,11 +435,11 @@ class OsramLightifyGroup(Luminary):
         #       users.
         return f"{self._luminary.lights()}"
 
-    def _get_supported_features(self):
+    def _get_supported_features(self) -> LightEntityFeature | int:
         """Get list of supported features."""
         features = super()._get_supported_features()
         if self._luminary.scenes():
-            features = features | LightEntityFeature.EFFECT
+            features |= LightEntityFeature.EFFECT
 
         return features