diff --git a/tasmota/my_user_config.h b/tasmota/my_user_config.h
index fc108ce9f..7c354c8bf 100644
--- a/tasmota/my_user_config.h
+++ b/tasmota/my_user_config.h
@@ -719,6 +719,10 @@
 
 // -- IR Remote features - subset of IR protocols --------------------------
 #define USE_IR_REMOTE                            // Send IR remote commands using library IRremoteESP8266 and ArduinoJson (+4k3 code, 0k3 mem, 48 iram)
+  #define IR_SEND_INVERTED          false        // Invert the output. (default = false) e.g. LED is illuminated when GPIO is LOW rather than HIGH.
+                                                 // Setting inverted to something other than the default could easily destroy your IR LED if you are overdriving it.
+                                                 // Unless you REALLY know what you are doing, don't change this.
+  #define IR_SEND_USE_MODULATION    true         // Do we do frequency modulation during transmission? i.e. If not, assume a 100% duty cycle.
   #define USE_IR_SEND_NEC                        // Support IRsend NEC protocol
   #define USE_IR_SEND_RC5                        // Support IRsend Philips RC5 protocol
   #define USE_IR_SEND_RC6                        // Support IRsend Philips RC6 protocol
diff --git a/tasmota/xdrv_05_irremote.ino b/tasmota/xdrv_05_irremote.ino
index 881ce62bf..efa048465 100644
--- a/tasmota/xdrv_05_irremote.ino
+++ b/tasmota/xdrv_05_irremote.ino
@@ -128,7 +128,7 @@ IRsend *irsend = nullptr;
 
 void IrSendInit(void)
 {
-  irsend = new IRsend(Pin(GPIO_IRSEND)); // an IR led is at GPIO_IRSEND
+  irsend = new IRsend(Pin(GPIO_IRSEND), IR_SEND_INVERTED, IR_SEND_USE_MODULATION); // an IR led is at GPIO_IRSEND
   irsend->begin();
 }
 
diff --git a/tasmota/xdrv_05_irremote_full.ino b/tasmota/xdrv_05_irremote_full.ino
index 31dd22968..4bfd00da2 100644
--- a/tasmota/xdrv_05_irremote_full.ino
+++ b/tasmota/xdrv_05_irremote_full.ino
@@ -136,7 +136,7 @@ StateModes strToStateMode(class JsonParserToken token, StateModes def); // decla
 
 void IrSendInit(void)
 {
-  irsend = new IRsend(Pin(GPIO_IRSEND)); // an IR led is at GPIO_IRSEND
+  irsend = new IRsend(Pin(GPIO_IRSEND), IR_SEND_INVERTED, IR_SEND_USE_MODULATION); // an IR led is at GPIO_IRSEND
   irsend->begin();
 }
 
@@ -470,7 +470,7 @@ uint32_t IrRemoteCmndIrHvacJson(void)
 
   if (!IR_RCV_WHILE_SENDING && (irrecv != nullptr)) { irrecv->disableIRIn(); }
   if (stateMode == StateModes::SEND_ONLY || stateMode == StateModes::SEND_STORE) {
-    IRac ac(Pin(GPIO_IRSEND));
+    IRac ac(Pin(GPIO_IRSEND), IR_SEND_INVERTED, IR_SEND_USE_MODULATION);
     bool success = ac.sendAc(state, irhvac_stateful && irac_prev_state.protocol == state.protocol ? &irac_prev_state : nullptr);
     if (!success) { return IE_SYNTAX_IRHVAC; }
   }