diff --git a/homeassistant/components/ads/light.py b/homeassistant/components/ads/light.py
index a6bccc68fe5..316243f9bae 100644
--- a/homeassistant/components/ads/light.py
+++ b/homeassistant/components/ads/light.py
@@ -6,8 +6,9 @@ import voluptuous as vol
 
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS,
+    COLOR_MODE_BRIGHTNESS,
+    COLOR_MODE_ONOFF,
     PLATFORM_SCHEMA,
-    SUPPORT_BRIGHTNESS,
     LightEntity,
 )
 from homeassistant.const import CONF_NAME
@@ -60,7 +61,11 @@ class AdsLight(AdsEntity, LightEntity):
         self._state_dict[STATE_KEY_BRIGHTNESS] = None
         self._ads_var_brightness = ads_var_brightness
         if ads_var_brightness is not None:
-            self._attr_supported_features = SUPPORT_BRIGHTNESS
+            self._attr_color_mode = COLOR_MODE_BRIGHTNESS
+            self._attr_supported_color_modes = {COLOR_MODE_BRIGHTNESS}
+        else:
+            self._attr_color_mode = COLOR_MODE_ONOFF
+            self._attr_supported_color_modes = {COLOR_MODE_ONOFF}
 
     async def async_added_to_hass(self):
         """Register device notification."""