diff --git a/mainwindow.cpp b/mainwindow.cpp
index e86fbd1..f5c4d19 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -402,7 +402,7 @@ zaf_error_code_t MainWindow::refreshPage() {
   ui->LightSrcX_TriSrc_##index->setCurrentText(QString::fromStdString(src.toString())); \
   ui->LightSrcX_TriggerModePluseWidth_##index->setText(QString::number(width));         \
   ui->LightSrcX_TriggerModeFirstPluseOffset_##index->setText(QString::number(offset));  \
-  ui->LightSrcX_TriggerModePluseDelay_##index->setText(QString::number(5));         \
+  ui->LightSrcX_TriggerModePluseDelay_##index->setText(QString::number(delay));         \
   ui->LightSrcX_LightIntensityDuty_##index->setText(QString::number(duty, 'f', 3));     \
   ui->LightSrcX_LightDriverFreq_##index->setText(QString::number(freq, 'f', 2));
 
diff --git a/release/IFlytopLTC_V21.exe b/release/IFlytopLTC_V21.exe
new file mode 100644
index 0000000..3d929ee
Binary files /dev/null and b/release/IFlytopLTC_V21.exe differ
diff --git a/src/version.h b/src/version.h
index 167c8d8..e8a1811 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1,4 +1,4 @@
 #pragma once
 
-#define VERSION 20
+#define VERSION 21
 #define MAUFACTURER "iflytop"
\ No newline at end of file