diff --git a/variants/heltec_v4/platformio.ini b/variants/heltec_v4/platformio.ini
index 6f6bf2b538..2e4d489e4c 100644
--- a/variants/heltec_v4/platformio.ini
+++ b/variants/heltec_v4/platformio.ini
@@ -26,8 +26,8 @@ build_flags =
   -D PIN_USER_BTN=0
   -D PIN_VEXT_EN=36
   -D PIN_VEXT_EN_ACTIVE=HIGH
-  -D LORA_TX_POWER=10 ;If it is configured as 10 here, the final output will be 22 dbm.
-  -D MAX_LORA_TX_POWER=22 ; Max SX1262 output
+  -D LORA_TX_POWER=-4 ; -4 dBm output power from SX1262 is maximum that will not saturate PA on V4.3 board, V4.2 only saturates at +0 dBm
+  -D MAX_LORA_TX_POWER=5 ; Absolute maximum TX input power rating of GC1109 FEM, exact maximum of KCT8103L unclear
   -D SX126X_REGISTER_PATCH=1       ; Patch register 0x8B5 for improved RX
   -D SX126X_DIO2_AS_RF_SWITCH=true ; GC1109 CTX is controlled by SX1262 DIO2
   -D SX126X_DIO3_TCXO_VOLTAGE=1.8