diff --git a/pywizlight/bulb.py b/pywizlight/bulb.py
index 14aa855..79d88e4 100755
--- a/pywizlight/bulb.py
+++ b/pywizlight/bulb.py
@@ -170,7 +170,8 @@ def get_rgb(self):
 
     def get_brightness(self) -> int:
         """Get the value of the brightness 0-255."""
-        return self.percent_to_hex(self.pilotResult["dimming"])
+        if 'dimming' in self.pilotResult:
+            return self.percent_to_hex(self.pilotResult['dimming'])
 
     def get_colortemp(self) -> int:
         """Get the color temperatur from the bulb."""