diff --git a/homeassistant/components/fritzbox/light.py b/homeassistant/components/fritzbox/light.py
index d31ccd180c4..8dc51e59738 100644
--- a/homeassistant/components/fritzbox/light.py
+++ b/homeassistant/components/fritzbox/light.py
@@ -38,11 +38,9 @@ async def async_setup_entry(
             FritzboxLight(
                 coordinator,
                 ain,
-                device.get_colors(),
-                device.get_color_temps(),
             )
             for ain in coordinator.new_devices
-            if (device := coordinator.data.devices[ain]).has_lightbulb
+            if (coordinator.data.devices[ain]).has_lightbulb
         )
 
     entry.async_on_unload(coordinator.async_add_listener(_add_entities))
@@ -57,27 +55,10 @@ class FritzboxLight(FritzBoxDeviceEntity, LightEntity):
         self,
         coordinator: FritzboxDataUpdateCoordinator,
         ain: str,
-        supported_colors: dict,
-        supported_color_temps: list[int],
     ) -> None:
         """Initialize the FritzboxLight entity."""
         super().__init__(coordinator, ain, None)
-
-        if supported_color_temps:
-            # only available for color bulbs
-            self._attr_max_color_temp_kelvin = int(max(supported_color_temps))
-            self._attr_min_color_temp_kelvin = int(min(supported_color_temps))
-
-        # Fritz!DECT 500 only supports 12 values for hue, with 3 saturations each.
-        # Map supported colors to dict {hue: [sat1, sat2, sat3]} for easier lookup
         self._supported_hs: dict[int, list[int]] = {}
-        for values in supported_colors.values():
-            hue = int(values[0][0])
-            self._supported_hs[hue] = [
-                int(values[0][1]),
-                int(values[1][1]),
-                int(values[2][1]),
-            ]
 
     @property
     def is_on(self) -> bool:
@@ -173,3 +154,28 @@ class FritzboxLight(FritzBoxDeviceEntity, LightEntity):
         """Turn the light off."""
         await self.hass.async_add_executor_job(self.data.set_state_off)
         await self.coordinator.async_refresh()
+
+    async def async_added_to_hass(self) -> None:
+        """Get light attributes from device after entity is added to hass."""
+        await super().async_added_to_hass()
+        supported_colors = await self.hass.async_add_executor_job(
+            self.coordinator.data.devices[self.ain].get_colors
+        )
+        supported_color_temps = await self.hass.async_add_executor_job(
+            self.coordinator.data.devices[self.ain].get_color_temps
+        )
+
+        if supported_color_temps:
+            # only available for color bulbs
+            self._attr_max_color_temp_kelvin = int(max(supported_color_temps))
+            self._attr_min_color_temp_kelvin = int(min(supported_color_temps))
+
+        # Fritz!DECT 500 only supports 12 values for hue, with 3 saturations each.
+        # Map supported colors to dict {hue: [sat1, sat2, sat3]} for easier lookup
+        for values in supported_colors.values():
+            hue = int(values[0][0])
+            self._supported_hs[hue] = [
+                int(values[0][1]),
+                int(values[1][1]),
+                int(values[2][1]),
+            ]