diff --git a/zha/application/__init__.py b/zha/application/__init__.py
index bf2d34d8..385cc969 100644
--- a/zha/application/__init__.py
+++ b/zha/application/__init__.py
@@ -6,45 +6,21 @@
 class Platform(StrEnum):
     """Available entity platforms."""
 
-    AIR_QUALITY = "air_quality"
     ALARM_CONTROL_PANEL = "alarm_control_panel"
     BINARY_SENSOR = "binary_sensor"
     BUTTON = "button"
-    CALENDAR = "calendar"
-    CAMERA = "camera"
     CLIMATE = "climate"
     COVER = "cover"
-    DATE = "date"
-    DATETIME = "datetime"
     DEVICE_TRACKER = "device_tracker"
     EVENT = "event"
     FAN = "fan"
-    GEO_LOCATION = "geo_location"
-    HUMIDIFIER = "humidifier"
-    IMAGE = "image"
-    IMAGE_PROCESSING = "image_processing"
-    LAWN_MOWER = "lawn_mower"
     LIGHT = "light"
     LOCK = "lock"
-    MAILBOX = "mailbox"
-    MEDIA_PLAYER = "media_player"
-    NOTIFY = "notify"
     NUMBER = "number"
-    REMOTE = "remote"
-    SCENE = "scene"
     SELECT = "select"
     SENSOR = "sensor"
     SIREN = "siren"
-    STT = "stt"
     SWITCH = "switch"
-    TEXT = "text"
-    TIME = "time"
-    TODO = "todo"
-    TTS = "tts"
-    VACUUM = "vacuum"
     VALVE = "valve"
     UNKNOWN = "unknown"
     UPDATE = "update"
-    WAKE_WORD = "wake_word"
-    WATER_HEATER = "water_heater"
-    WEATHER = "weather"
diff --git a/zha/application/const.py b/zha/application/const.py
index 6d39c0c8..1b79f151 100644
--- a/zha/application/const.py
+++ b/zha/application/const.py
@@ -1,9 +1,8 @@
-"""All constants related to the ZHA component."""
+"""Constants for ZHA."""
 
 from __future__ import annotations
 
 import enum
-import logging
 from numbers import Number
 from typing import Any, Final
 
@@ -188,26 +187,6 @@ def __voluptuous_compile__(self, schema: vol.Schema) -> Any:  # pylint: disable=
 DATA_ZHA_DEVICE_TRIGGER_CACHE = "zha_device_trigger_cache"
 DATA_ZHA_GATEWAY = "zha_gateway"
 
-DEBUG_COMP_BELLOWS = "bellows"
-DEBUG_COMP_ZHA = "homeassistant.components.zha"
-DEBUG_COMP_ZIGPY = "zigpy"
-DEBUG_COMP_ZIGPY_ZNP = "zigpy_znp"
-DEBUG_COMP_ZIGPY_DECONZ = "zigpy_deconz"
-DEBUG_COMP_ZIGPY_XBEE = "zigpy_xbee"
-DEBUG_COMP_ZIGPY_ZIGATE = "zigpy_zigate"
-DEBUG_LEVEL_CURRENT = "current"
-DEBUG_LEVEL_ORIGINAL = "original"
-DEBUG_LEVELS = {
-    DEBUG_COMP_BELLOWS: logging.DEBUG,
-    DEBUG_COMP_ZHA: logging.DEBUG,
-    DEBUG_COMP_ZIGPY: logging.DEBUG,
-    DEBUG_COMP_ZIGPY_ZNP: logging.DEBUG,
-    DEBUG_COMP_ZIGPY_DECONZ: logging.DEBUG,
-    DEBUG_COMP_ZIGPY_XBEE: logging.DEBUG,
-    DEBUG_COMP_ZIGPY_ZIGATE: logging.DEBUG,
-}
-DEBUG_RELAY_LOGGERS = [DEBUG_COMP_ZHA, DEBUG_COMP_ZIGPY]
-
 DEFAULT_RADIO_TYPE = "ezsp"
 DEFAULT_BAUDRATE = 57600
 DEFAULT_DATABASE_NAME = "zigbee.db"
diff --git a/zha/application/discovery.py b/zha/application/discovery.py
index 290d20b1..3ecf2b76 100644
--- a/zha/application/discovery.py
+++ b/zha/application/discovery.py
@@ -427,7 +427,7 @@ def probe_single_cluster(
         cluster_handler: ClusterHandler,
         endpoint: Endpoint,
     ) -> None:
-        """Probe specified cluster for specific component."""
+        """Probe specified cluster for specific platform."""
         if platform is None or platform not in PLATFORMS:
             return
         cluster_handler_list = [cluster_handler]
@@ -544,7 +544,7 @@ def initialize(self, gateway: Gateway) -> None:
 
 
 class GroupProbe:
-    """Determine the appropriate component for a group."""
+    """Determine the appropriate platform for a group."""
 
     def __init__(self) -> None:
         """Initialize instance."""
diff --git a/zha/application/helpers.py b/zha/application/helpers.py
index 34366711..bb6a5e38 100644
--- a/zha/application/helpers.py
+++ b/zha/application/helpers.py
@@ -1,8 +1,4 @@
-"""Helpers for Zigbee Home Automation.
-
-For more details about this component, please refer to the documentation at
-https://home-assistant.io/integrations/zha/
-"""
+"""Helpers for Zigbee Home Automation."""
 
 from __future__ import annotations
 
diff --git a/zha/application/platforms/__init__.py b/zha/application/platforms/__init__.py
index 3fa1e3d1..cd0fd55c 100644
--- a/zha/application/platforms/__init__.py
+++ b/zha/application/platforms/__init__.py
@@ -29,12 +29,7 @@
 
 
 class EntityCategory(StrEnum):
-    """Category of an entity.
-
-    An entity with a category will:
-    - Not be exposed to cloud, Alexa, or Google Assistant components
-    - Not be included in indirect service calls to devices or areas
-    """
+    """Category of an entity."""
 
     # Config: An entity which allows changing the configuration of a device.
     CONFIG = "config"
diff --git a/zha/application/platforms/binary_sensor/__init__.py b/zha/application/platforms/binary_sensor/__init__.py
index 866c8813..f55a12e0 100644
--- a/zha/application/platforms/binary_sensor/__init__.py
+++ b/zha/application/platforms/binary_sensor/__init__.py
@@ -233,7 +233,7 @@ def translation_key(self) -> str | None:
 
     @property
     def device_class(self) -> BinarySensorDeviceClass | None:
-        """Return device class from component DEVICE_CLASSES."""
+        """Return device class from platform DEVICE_CLASSES."""
         zone_type = self._cluster_handler.cluster.get("zone_type")
         return IAS_ZONE_CLASS_MAPPING.get(zone_type)
 
diff --git a/zha/zigbee/cluster_handlers/hvac.py b/zha/zigbee/cluster_handlers/hvac.py
index 450d1461..a91cf810 100644
--- a/zha/zigbee/cluster_handlers/hvac.py
+++ b/zha/zigbee/cluster_handlers/hvac.py
@@ -1,8 +1,4 @@
-"""HVAC cluster handlers module for Zigbee Home Automation.
-
-For more details about this component, please refer to the documentation at
-https://home-assistant.io/integrations/zha/
-"""
+"""HVAC cluster handlers module for Zigbee Home Automation."""
 
 from __future__ import annotations
 
diff --git a/zha/zigbee/cluster_handlers/security.py b/zha/zigbee/cluster_handlers/security.py
index 47e29177..db0864e4 100644
--- a/zha/zigbee/cluster_handlers/security.py
+++ b/zha/zigbee/cluster_handlers/security.py
@@ -1,8 +1,4 @@
-"""Security cluster handlers module for Zigbee Home Automation.
-
-For more details about this component, please refer to the documentation at
-https://home-assistant.io/integrations/zha/
-"""
+"""Security cluster handlers module for Zigbee Home Automation."""
 
 from __future__ import annotations