diff --git a/homeassistant/components/isy994/light.py b/homeassistant/components/isy994/light.py
index 13df6d513b7..0cab8cca5df 100644
--- a/homeassistant/components/isy994/light.py
+++ b/homeassistant/components/isy994/light.py
@@ -8,8 +8,8 @@ from pyisy.helpers import NodeProperty
 from pyisy.nodes import Node
 
 from homeassistant.components.light import (
+    COLOR_MODE_BRIGHTNESS,
     DOMAIN as LIGHT,
-    SUPPORT_BRIGHTNESS,
     LightEntity,
 )
 from homeassistant.config_entries import ConfigEntry
@@ -51,6 +51,9 @@ async def async_setup_entry(
 class ISYLightEntity(ISYNodeEntity, LightEntity, RestoreEntity):
     """Representation of an ISY994 light device."""
 
+    _attr_color_mode = COLOR_MODE_BRIGHTNESS
+    _attr_supported_color_modes = {COLOR_MODE_BRIGHTNESS}
+
     def __init__(self, node: Node, restore_light_state: bool) -> None:
         """Initialize the ISY994 light device."""
         super().__init__(node)
@@ -108,11 +111,6 @@ class ISYLightEntity(ISYNodeEntity, LightEntity, RestoreEntity):
         attribs[ATTR_LAST_BRIGHTNESS] = self._last_brightness
         return attribs
 
-    @property
-    def supported_features(self) -> int:
-        """Flag supported features."""
-        return SUPPORT_BRIGHTNESS
-
     async def async_added_to_hass(self) -> None:
         """Restore last_brightness on restart."""
         await super().async_added_to_hass()