diff --git a/Arduino/CanGrow/CanGrow.ino b/Arduino/CanGrow/CanGrow.ino
index 4e9d6ee..357d2a0 100644
--- a/Arduino/CanGrow/CanGrow.ino
+++ b/Arduino/CanGrow/CanGrow.ino
@@ -1703,8 +1703,19 @@ void POSTsystemSettings() {
   // size is 1 byte
   EEPROM.put(214, TemperatureSensor_Type);
   
+  // write data to EEPROM
   EEPROM.commit();
   
+  // when user uses an relais for LED control, we force here PINled_PWM to 255
+  // to ensure nothing bad happens
+  if(UseLEDrelais == true) {
+    PINled_PWM = 255;
+    EEPROM.put(213, PINled_PWM);
+    EEPROM.commit();
+    Serial.println("UseLEDrelais is 1, forcing PINled_PWM to max to prevent relais damage");
+    
+  }
+  
   // update time with new offset
   timeClient.setTimeOffset(ntpOffset * 60 * 60);
   timeClient.update();
@@ -1725,6 +1736,10 @@ void POSTsystemSettings() {
   Serial.println(SoilmoistureLow);
   Serial.print("ntpOffset: ");
   Serial.println(ntpOffset);
+  Serial.print("UseLEDrelais: ");
+  Serial.println(UseLEDrelais);
+  Serial.print("TemperatureSensor_Type: ");
+  Serial.println(TemperatureSensor_Type);
   
   if(strlen(GrowName)  < 1) {
     webserver.sendHeader("Location", String("/growSettings?success"), true);