diff --git a/controllerHomie/controllerHomie.ino b/controllerHomie/controllerHomie.ino
index 2342024..66fdaad 100644
--- a/controllerHomie/controllerHomie.ino
+++ b/controllerHomie/controllerHomie.ino
@@ -57,7 +57,7 @@ HomieNode lightNode("light", "light");
  */
 
 #define PWM_MAX 1023 //10 bit dac
-#define PWM_FREQUENCY 1000 //default: 1000 Hz
+#define PWM_FREQUENCY 500 //default: 1000 Hz
 
 boolean enable=false;
 float enable_fadevalue=0; //0=off, 1=on