diff --git a/Window1.xaml b/Window1.xaml
index a7e94d8..5719259 100644
--- a/Window1.xaml
+++ b/Window1.xaml
@@ -38,7 +38,7 @@
                     <RadioButton x:Name="rb50Hz" Content="50 Hz" GroupName="Freq" IsChecked="True" Margin="5,0,15,0"/>
                     <RadioButton x:Name="rb60Hz" Content="60 Hz" GroupName="Freq"/>
                     <Label Content="设定电流 (A):" Margin="20,0,0,0"/>
-                    <TextBox x:Name="txtSetCurrent" Text="0.680" Width="80" TextAlignment="Center"/>
+                    <TextBox x:Name="txtSetCurrent" Text="0.720" Width="80" TextAlignment="Center"/>
                     <Label Content="A"/>
                     <Button x:Name="btnSet" Content="直接设定" Click="BtnSet_Click" Width="80" Margin="10,0,0,0"/>
                     <Button x:Name="btnStop" Content="禁止输出" Click="BtnStop_Click" Width="80" Margin="5,0,0,0"/>