diff --git a/Create-DevTerm-A06-OS-image-from-scratch.md b/Create-DevTerm-A06-OS-image-from-scratch.md
index 508c0e0..4be8828 100644
--- a/Create-DevTerm-A06-OS-image-from-scratch.md
+++ b/Create-DevTerm-A06-OS-image-from-scratch.md
@@ -153,8 +153,11 @@ sudo apt install -y arandr chromium-browser vlc cpupower-gui xfce4-power-manager
     <property name="critical-power-level" type="uint" value="5"/>
     <property name="dpms-enabled" type="bool" value="false"/>
     <property name="blank-on-ac" type="int" value="0"/>
-    <property name="brightness-on-battery" type="uint" value="9"/>
+    <property name="brightness-on-battery" type="uint" value="120"/>
     <property name="blank-on-battery" type="int" value="0"/>
+    <property name="brightness-on-ac" type="uint" value="120"/>
+    <property name="brightness-level-on-battery" type="uint" value="40"/>
+    <property name="brightness-level-on-ac" type="uint" value="42"/>
   </property>
 </channel>
 ```