diff --git a/homeassistant/components/hdmi_cec/switch.py b/homeassistant/components/hdmi_cec/switch.py
index 2ba606c9245..3764766275e 100644
--- a/homeassistant/components/hdmi_cec/switch.py
+++ b/homeassistant/components/hdmi_cec/switch.py
@@ -4,7 +4,6 @@ from __future__ import annotations
 import logging
 
 from homeassistant.components.switch import DOMAIN, SwitchEntity
-from homeassistant.const import STATE_OFF, STATE_ON
 
 from . import ATTR_NEW, CecEntity
 
@@ -35,30 +34,17 @@ class CecSwitchEntity(CecEntity, SwitchEntity):
     def turn_on(self, **kwargs) -> None:
         """Turn device on."""
         self._device.turn_on()
-        self._state = STATE_ON
+        self._attr_is_on = True
         self.schedule_update_ha_state(force_refresh=False)
 
     def turn_off(self, **kwargs) -> None:
         """Turn device off."""
         self._device.turn_off()
-        self._state = STATE_OFF
+        self._attr_is_on = False
         self.schedule_update_ha_state(force_refresh=False)
 
     def toggle(self, **kwargs):
         """Toggle the entity."""
         self._device.toggle()
-        if self._state == STATE_ON:
-            self._state = STATE_OFF
-        else:
-            self._state = STATE_ON
+        self._attr_is_on = not self._attr_is_on
         self.schedule_update_ha_state(force_refresh=False)
-
-    @property
-    def is_on(self) -> bool:
-        """Return True if entity is on."""
-        return self._state == STATE_ON
-
-    @property  # type: ignore
-    def state(self) -> str | None:
-        """Return the cached state of device."""
-        return self._state