diff --git a/homeassistant/components/ihc/light.py b/homeassistant/components/ihc/light.py
index b86f9fb3c8a..54075fdedac 100644
--- a/homeassistant/components/ihc/light.py
+++ b/homeassistant/components/ihc/light.py
@@ -5,7 +5,8 @@ from ihcsdk.ihccontroller import IHCController
 
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS,
-    SUPPORT_BRIGHTNESS,
+    COLOR_MODE_BRIGHTNESS,
+    COLOR_MODE_ONOFF,
     LightEntity,
 )
 from homeassistant.core import HomeAssistant
@@ -78,6 +79,12 @@ class IhcLight(IHCDevice, LightEntity):
         self._dimmable = dimmable
         self._state = False
 
+        if self._dimmable:
+            self._attr_color_mode = COLOR_MODE_BRIGHTNESS
+        else:
+            self._attr_color_mode = COLOR_MODE_ONOFF
+        self._attr_supported_color_modes = {self._attr_color_mode}
+
     @property
     def brightness(self) -> int:
         """Return the brightness of this light between 0..255."""
@@ -88,13 +95,6 @@ class IhcLight(IHCDevice, LightEntity):
         """Return true if light is on."""
         return self._state
 
-    @property
-    def supported_features(self):
-        """Flag supported features."""
-        if self._dimmable:
-            return SUPPORT_BRIGHTNESS
-        return 0
-
     async def async_turn_on(self, **kwargs):
         """Turn the light on."""
         if ATTR_BRIGHTNESS in kwargs: