diff --git a/homeassistant/components/eheimdigital/icons.json b/homeassistant/components/eheimdigital/icons.json
index 41a362c757c..cbe2613dd97 100644
--- a/homeassistant/components/eheimdigital/icons.json
+++ b/homeassistant/components/eheimdigital/icons.json
@@ -15,6 +15,12 @@
       },
       "night_temperature_offset": {
         "default": "mdi:thermometer"
+      },
+      "system_led": {
+        "default": "mdi:led-on",
+        "state": {
+          "0": "mdi:led-off"
+        }
       }
     },
     "sensor": {
diff --git a/homeassistant/components/eheimdigital/number.py b/homeassistant/components/eheimdigital/number.py
index f4504be624c..7fd0c6b6de7 100644
--- a/homeassistant/components/eheimdigital/number.py
+++ b/homeassistant/components/eheimdigital/number.py
@@ -109,6 +109,20 @@ HEATER_DESCRIPTIONS: tuple[EheimDigitalNumberDescription[EheimDigitalHeater], ..
     ),
 )
 
+GENERAL_DESCRIPTIONS: tuple[EheimDigitalNumberDescription[EheimDigitalDevice], ...] = (
+    EheimDigitalNumberDescription[EheimDigitalDevice](
+        key="system_led",
+        translation_key="system_led",
+        entity_category=EntityCategory.CONFIG,
+        native_min_value=0,
+        native_max_value=100,
+        native_step=PRECISION_WHOLE,
+        native_unit_of_measurement=PERCENTAGE,
+        value_fn=lambda device: device.sys_led,
+        set_value_fn=lambda device, value: device.set_sys_led(int(value)),
+    ),
+)
+
 
 async def async_setup_entry(
     hass: HomeAssistant,
@@ -138,6 +152,10 @@ async def async_setup_entry(
                     )
                     for description in HEATER_DESCRIPTIONS
                 )
+            entities.extend(
+                EheimDigitalNumber[EheimDigitalDevice](coordinator, device, description)
+                for description in GENERAL_DESCRIPTIONS
+            )
 
         async_add_entities(entities)
 
diff --git a/homeassistant/components/eheimdigital/strings.json b/homeassistant/components/eheimdigital/strings.json
index 97a3fbe4e0d..f6f6b74a72e 100644
--- a/homeassistant/components/eheimdigital/strings.json
+++ b/homeassistant/components/eheimdigital/strings.json
@@ -62,6 +62,9 @@
       },
       "night_temperature_offset": {
         "name": "Night temperature offset"
+      },
+      "system_led": {
+        "name": "System LED brightness"
       }
     },
     "sensor": {
diff --git a/tests/components/eheimdigital/conftest.py b/tests/components/eheimdigital/conftest.py
index 654028c7c11..5b828f830a4 100644
--- a/tests/components/eheimdigital/conftest.py
+++ b/tests/components/eheimdigital/conftest.py
@@ -47,6 +47,7 @@ def classic_led_ctrl_mock():
     classic_led_ctrl_mock.sw_version = "1.0.0_1.0.0"
     classic_led_ctrl_mock.light_mode = LightMode.DAYCL_MODE
     classic_led_ctrl_mock.light_level = (10, 39)
+    classic_led_ctrl_mock.sys_led = 20
     return classic_led_ctrl_mock
 
 
@@ -69,6 +70,7 @@ def heater_mock():
     heater_mock.operation_mode = HeaterMode.MANUAL
     heater_mock.day_start_time = time(8, 0, tzinfo=timezone(timedelta(hours=1)))
     heater_mock.night_start_time = time(20, 0, tzinfo=timezone(timedelta(hours=1)))
+    heater_mock.sys_led = 20
     return heater_mock
 
 
diff --git a/tests/components/eheimdigital/snapshots/test_number.ambr b/tests/components/eheimdigital/snapshots/test_number.ambr
index d647b16bf49..554e7c9c3a3 100644
--- a/tests/components/eheimdigital/snapshots/test_number.ambr
+++ b/tests/components/eheimdigital/snapshots/test_number.ambr
@@ -1,4 +1,61 @@
 # serializer version: 1
+# name: test_setup[number.mock_classicledcontrol_e_system_led_brightness-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'max': 100,
+      'min': 0,
+      'mode': <NumberMode.AUTO: 'auto'>,
+      'step': 1,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'number',
+    'entity_category': <EntityCategory.CONFIG: 'config'>,
+    'entity_id': 'number.mock_classicledcontrol_e_system_led_brightness',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'System LED brightness',
+    'platform': 'eheimdigital',
+    'previous_unique_id': None,
+    'supported_features': 0,
+    'translation_key': 'system_led',
+    'unique_id': '00:00:00:00:00:01_system_led',
+    'unit_of_measurement': '%',
+  })
+# ---
+# name: test_setup[number.mock_classicledcontrol_e_system_led_brightness-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'friendly_name': 'Mock classicLEDcontrol+e System LED brightness',
+      'max': 100,
+      'min': 0,
+      'mode': <NumberMode.AUTO: 'auto'>,
+      'step': 1,
+      'unit_of_measurement': '%',
+    }),
+    'context': <ANY>,
+    'entity_id': 'number.mock_classicledcontrol_e_system_led_brightness',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unknown',
+  })
+# ---
 # name: test_setup[number.mock_classicvario_day_speed-entry]
   EntityRegistryEntrySnapshot({
     'aliases': set({
@@ -170,6 +227,63 @@
     'state': 'unknown',
   })
 # ---
+# name: test_setup[number.mock_classicvario_system_led_brightness-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'max': 100,
+      'min': 0,
+      'mode': <NumberMode.AUTO: 'auto'>,
+      'step': 1,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'number',
+    'entity_category': <EntityCategory.CONFIG: 'config'>,
+    'entity_id': 'number.mock_classicvario_system_led_brightness',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'System LED brightness',
+    'platform': 'eheimdigital',
+    'previous_unique_id': None,
+    'supported_features': 0,
+    'translation_key': 'system_led',
+    'unique_id': '00:00:00:00:00:03_system_led',
+    'unit_of_measurement': '%',
+  })
+# ---
+# name: test_setup[number.mock_classicvario_system_led_brightness-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'friendly_name': 'Mock classicVARIO System LED brightness',
+      'max': 100,
+      'min': 0,
+      'mode': <NumberMode.AUTO: 'auto'>,
+      'step': 1,
+      'unit_of_measurement': '%',
+    }),
+    'context': <ANY>,
+    'entity_id': 'number.mock_classicvario_system_led_brightness',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unknown',
+  })
+# ---
 # name: test_setup[number.mock_heater_night_temperature_offset-entry]
   EntityRegistryEntrySnapshot({
     'aliases': set({
@@ -227,6 +341,63 @@
     'state': 'unknown',
   })
 # ---
+# name: test_setup[number.mock_heater_system_led_brightness-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'max': 100,
+      'min': 0,
+      'mode': <NumberMode.AUTO: 'auto'>,
+      'step': 1,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'number',
+    'entity_category': <EntityCategory.CONFIG: 'config'>,
+    'entity_id': 'number.mock_heater_system_led_brightness',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'System LED brightness',
+    'platform': 'eheimdigital',
+    'previous_unique_id': None,
+    'supported_features': 0,
+    'translation_key': 'system_led',
+    'unique_id': '00:00:00:00:00:02_system_led',
+    'unit_of_measurement': '%',
+  })
+# ---
+# name: test_setup[number.mock_heater_system_led_brightness-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'friendly_name': 'Mock Heater System LED brightness',
+      'max': 100,
+      'min': 0,
+      'mode': <NumberMode.AUTO: 'auto'>,
+      'step': 1,
+      'unit_of_measurement': '%',
+    }),
+    'context': <ANY>,
+    'entity_id': 'number.mock_heater_system_led_brightness',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unknown',
+  })
+# ---
 # name: test_setup[number.mock_heater_temperature_offset-entry]
   EntityRegistryEntrySnapshot({
     'aliases': set({
diff --git a/tests/components/eheimdigital/test_number.py b/tests/components/eheimdigital/test_number.py
index d84c14f95a5..a23f461744a 100644
--- a/tests/components/eheimdigital/test_number.py
+++ b/tests/components/eheimdigital/test_number.py
@@ -67,6 +67,12 @@ async def test_setup(
                     "set_night_temperature_offset",
                     (0.4,),
                 ),
+                (
+                    "number.mock_heater_system_led_brightness",
+                    20,
+                    "set_sys_led",
+                    (20,),
+                ),
             ],
         ),
         (
@@ -90,6 +96,12 @@ async def test_setup(
                     "set_night_speed",
                     (int(72.1),),
                 ),
+                (
+                    "number.mock_classicvario_system_led_brightness",
+                    20,
+                    "set_sys_led",
+                    (20,),
+                ),
             ],
         ),
     ],
@@ -140,6 +152,11 @@ async def test_set_value(
                     "night_temperature_offset",
                     2.3,
                 ),
+                (
+                    "number.mock_heater_system_led_brightness",
+                    "sys_led",
+                    87,
+                ),
             ],
         ),
         (
@@ -160,6 +177,11 @@ async def test_set_value(
                     "night_speed",
                     12,
                 ),
+                (
+                    "number.mock_classicvario_system_led_brightness",
+                    "sys_led",
+                    35,
+                ),
             ],
         ),
     ],