diff --git a/tests/components/comelit/snapshots/test_light.ambr b/tests/components/comelit/snapshots/test_light.ambr
new file mode 100644
index 00000000000..c60c962e23d
--- /dev/null
+++ b/tests/components/comelit/snapshots/test_light.ambr
@@ -0,0 +1,57 @@
+# serializer version: 1
+# name: test_all_entities[light.light0-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'supported_color_modes': list([
+        <ColorMode.ONOFF: 'onoff'>,
+      ]),
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'light',
+    'entity_category': None,
+    'entity_id': 'light.light0',
+    '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': None,
+    'platform': 'comelit',
+    'previous_unique_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': 'serial_bridge_config_entry_id-0',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_all_entities[light.light0-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'color_mode': None,
+      'friendly_name': 'Light0',
+      'supported_color_modes': list([
+        <ColorMode.ONOFF: 'onoff'>,
+      ]),
+      'supported_features': <LightEntityFeature: 0>,
+    }),
+    'context': <ANY>,
+    'entity_id': 'light.light0',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'off',
+  })
+# ---
diff --git a/tests/components/comelit/test_light.py b/tests/components/comelit/test_light.py
new file mode 100644
index 00000000000..6c6de58c8ed
--- /dev/null
+++ b/tests/components/comelit/test_light.py
@@ -0,0 +1,76 @@
+"""Tests for Comelit SimpleHome light platform."""
+
+from unittest.mock import AsyncMock, patch
+
+import pytest
+from syrupy import SnapshotAssertion
+
+from homeassistant.components.light import (
+    DOMAIN as LIGHT_DOMAIN,
+    SERVICE_TOGGLE,
+    SERVICE_TURN_OFF,
+    SERVICE_TURN_ON,
+)
+from homeassistant.const import ATTR_ENTITY_ID, STATE_OFF, STATE_ON, Platform
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
+
+from . import setup_integration
+
+from tests.common import MockConfigEntry, snapshot_platform
+
+ENTITY_ID = "light.light0"
+
+
+async def test_all_entities(
+    hass: HomeAssistant,
+    snapshot: SnapshotAssertion,
+    mock_serial_bridge: AsyncMock,
+    mock_serial_bridge_config_entry: MockConfigEntry,
+    entity_registry: er.EntityRegistry,
+) -> None:
+    """Test all entities."""
+    with patch("homeassistant.components.comelit.BRIDGE_PLATFORMS", [Platform.LIGHT]):
+        await setup_integration(hass, mock_serial_bridge_config_entry)
+
+    await snapshot_platform(
+        hass,
+        entity_registry,
+        snapshot(),
+        mock_serial_bridge_config_entry.entry_id,
+    )
+
+
+@pytest.mark.parametrize(
+    ("service", "status"),
+    [
+        (SERVICE_TURN_OFF, STATE_OFF),
+        (SERVICE_TURN_ON, STATE_ON),
+        (SERVICE_TOGGLE, STATE_ON),
+    ],
+)
+async def test_light_set_state(
+    hass: HomeAssistant,
+    mock_serial_bridge: AsyncMock,
+    mock_serial_bridge_config_entry: MockConfigEntry,
+    service: str,
+    status: str,
+) -> None:
+    """Test light set state service."""
+
+    await setup_integration(hass, mock_serial_bridge_config_entry)
+
+    assert (state := hass.states.get(ENTITY_ID))
+    assert state.state == STATE_OFF
+
+    # Test set temperature
+    await hass.services.async_call(
+        LIGHT_DOMAIN,
+        service,
+        {ATTR_ENTITY_ID: ENTITY_ID},
+        blocking=True,
+    )
+    mock_serial_bridge.set_device_status.assert_called()
+
+    assert (state := hass.states.get(ENTITY_ID))
+    assert state.state == status