Use entity class attributes for anel_pwrctrl (#52594)

* Use entity class attributes for anel_pwrctrl

* Tweak

homeassistant/components/anel_pwrctrl/switch.py

@@ -65,25 +65,13 @@ class PwrCtrlSwitch(SwitchEntity):
         """Initialize the PwrCtrl switch."""
         self._port = port
         self._parent_device = parent_device
-
-    @property
-    def unique_id(self):
-        """Return the unique ID of the device."""
-        return f"{self._port.device.host}-{self._port.get_index()}"
-
-    @property
-    def name(self):
-        """Return the name of the device."""
-        return self._port.label
-
-    @property
-    def is_on(self):
-        """Return true if the device is on."""
-        return self._port.get_state()
+        self._attr_unique_id = f"{port.device.host}-{port.get_index()}"
+        self._attr_name = port.label
 
     def update(self):
         """Trigger update for all switches on the parent device."""
         self._parent_device.update()
+        self._attr_is_on = self._port.get_state()
 
     def turn_on(self, **kwargs):
         """Turn the switch on."""