diff --git a/user_setups/esp32s3/esp32-s3-4848S040.ini b/user_setups/esp32s3/esp32-s3-4848S040.ini
index a07a6bb3..d70fbc37 100644
--- a/user_setups/esp32s3/esp32-s3-4848S040.ini
+++ b/user_setups/esp32s3/esp32-s3-4848S040.ini
@@ -52,6 +52,7 @@ build_flags =
     -D TFT_RST=-1
     -D TFT_BUSY=-1
     -D TFT_BCKL=38
+    -D BACKLIGHT_FREQUENCY=2000
     ; Panel Settings
     -D TFT_HSYNC_POLARITY=1
     -D TFT_HSYNC_FRONT_PORCH=10
diff --git a/user_setups/esp32s3/sunton-esp32-s3-tft.ini b/user_setups/esp32s3/sunton-esp32-s3-tft.ini
index f9bbe24c..4f8ec29d 100644
--- a/user_setups/esp32s3/sunton-esp32-s3-tft.ini
+++ b/user_setups/esp32s3/sunton-esp32-s3-tft.ini
@@ -21,7 +21,8 @@ build_flags =
     -D HASP_USE_ARDUINOGFX=1
     -D HASP_LV_USE_SW_ROTATE=1
     -D TFT_BCKL=2
-;endregion
+    -D BACKLIGHT_FREQUENCY=2000
+ ;endregion
 
 lib_deps =
     ${arduino_esp32s3_v2.lib_deps}