diff --git a/homeassistant/components/elgato/const.py b/homeassistant/components/elgato/const.py
index 8b931fc6328..1cfb48390cf 100644
--- a/homeassistant/components/elgato/const.py
+++ b/homeassistant/components/elgato/const.py
@@ -7,11 +7,7 @@ DOMAIN = "elgato"
 DATA_ELGATO_CLIENT = "elgato_client"
 
 # Attributes
-ATTR_IDENTIFIERS = "identifiers"
-ATTR_MANUFACTURER = "manufacturer"
-ATTR_MODEL = "model"
 ATTR_ON = "on"
-ATTR_SOFTWARE_VERSION = "sw_version"
 
 CONF_SERIAL_NUMBER = "serial_number"
 
diff --git a/homeassistant/components/elgato/light.py b/homeassistant/components/elgato/light.py
index 7f4987b2620..7ec21dd9f20 100644
--- a/homeassistant/components/elgato/light.py
+++ b/homeassistant/components/elgato/light.py
@@ -15,6 +15,13 @@ from homeassistant.components.light import (
     LightEntity,
 )
 from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import (
+    ATTR_IDENTIFIERS,
+    ATTR_MANUFACTURER,
+    ATTR_MODEL,
+    ATTR_NAME,
+    ATTR_SW_VERSION,
+)
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import DeviceInfo, Entity
 from homeassistant.helpers.entity_platform import async_get_current_platform
@@ -146,11 +153,11 @@ class ElgatoLight(LightEntity):
     def device_info(self) -> DeviceInfo:
         """Return device information about this Elgato Key Light."""
         return {
-            "identifiers": {(DOMAIN, self._info.serial_number)},
-            "name": self._info.product_name,
-            "manufacturer": "Elgato",
-            "model": self._info.product_name,
-            "sw_version": f"{self._info.firmware_version} ({self._info.firmware_build_number})",
+            ATTR_IDENTIFIERS: {(DOMAIN, self._info.serial_number)},
+            ATTR_NAME: self._info.product_name,
+            ATTR_MANUFACTURER: "Elgato",
+            ATTR_MODEL: self._info.product_name,
+            ATTR_SW_VERSION: f"{self._info.firmware_version} ({self._info.firmware_build_number})",
         }
 
     async def async_identify(self) -> None:
diff --git a/homeassistant/const.py b/homeassistant/const.py
index cb0e435c8d1..8aafc77356d 100644
--- a/homeassistant/const.py
+++ b/homeassistant/const.py
@@ -1,4 +1,6 @@
 """Constants used by Home Assistant components."""
+from typing import Final
+
 MAJOR_VERSION = 2021
 MINOR_VERSION = 6
 PATCH_VERSION = "0.dev0"
@@ -289,7 +291,7 @@ ATTR_SERVICE_DATA = "service_data"
 ATTR_ID = "id"
 
 # Name
-ATTR_NAME = "name"
+ATTR_NAME: Final = "name"
 
 # Contains one string or a list of strings, each being an entity id
 ATTR_ENTITY_ID = "entity_id"
@@ -306,6 +308,8 @@ ATTR_FRIENDLY_NAME = "friendly_name"
 # A picture to represent entity
 ATTR_ENTITY_PICTURE = "entity_picture"
 
+ATTR_IDENTIFIERS: Final = "identifiers"
+
 # Icon to use in the frontend
 ATTR_ICON = "icon"
 
@@ -323,6 +327,10 @@ ATTR_LOCATION = "location"
 
 ATTR_MODE = "mode"
 
+ATTR_MANUFACTURER: Final = "manufacturer"
+ATTR_MODEL: Final = "model"
+ATTR_SW_VERSION: Final = "sw_version"
+
 ATTR_BATTERY_CHARGING = "battery_charging"
 ATTR_BATTERY_LEVEL = "battery_level"
 ATTR_WAKEUP = "wake_up_interval"