diff --git a/homeassistant/components/starline/entity.py b/homeassistant/components/starline/entity.py
index 7eee5e7a7f8a98b7121dbc34bd579fa7f702eaa3..27be5e2aaced42f60d799e7cb45bab0470c54248 100644
--- a/homeassistant/components/starline/entity.py
+++ b/homeassistant/components/starline/entity.py
@@ -21,6 +21,8 @@ class StarlineEntity(Entity):
         self._account = account
         self._device = device
         self._key = key
+        self._attr_unique_id = f"starline-{key}-{device.device_id}"
+        self._attr_device_info = account.device_info(device)
         self._unsubscribe_api: Callable | None = None
 
     @property
@@ -28,16 +30,6 @@ class StarlineEntity(Entity):
         """Return True if entity is available."""
         return self._account.api.available
 
-    @property
-    def unique_id(self):
-        """Return the unique ID of the entity."""
-        return f"starline-{self._key}-{self._device.device_id}"
-
-    @property
-    def device_info(self):
-        """Return the device info."""
-        return self._account.device_info(self._device)
-
     def update(self):
         """Read new state data."""
         self.schedule_update_ha_state()
diff --git a/homeassistant/components/starline/switch.py b/homeassistant/components/starline/switch.py
index b254fa8133fc92e8a1983032cf0b91a12d5eb956..ebe27e29e8c230aa9730237ea7fb15caa735fe9e 100644
--- a/homeassistant/components/starline/switch.py
+++ b/homeassistant/components/starline/switch.py
@@ -77,6 +77,8 @@ class StarlineSwitch(StarlineEntity, SwitchEntity):
 
     entity_description: StarlineSwitchEntityDescription
 
+    _attr_assumed_state = True
+
     def __init__(
         self,
         account: StarlineAccount,
@@ -108,11 +110,6 @@ class StarlineSwitch(StarlineEntity, SwitchEntity):
             else self.entity_description.icon_off
         )
 
-    @property
-    def assumed_state(self):
-        """Return True if unable to access real state of the entity."""
-        return True
-
     @property
     def is_on(self):
         """Return True if entity is on."""