diff --git a/Aircraft/c172p/Instruments/EGT/EGT.xml b/Aircraft/c172p/Instruments/EGT/EGT.xml
index ea0bb1a8e..fdaa1e46c 100644
--- a/Aircraft/c172p/Instruments/EGT/EGT.xml
+++ b/Aircraft/c172p/Instruments/EGT/EGT.xml
@@ -33,11 +33,14 @@
material
egt
+ Needle
+ Bug
+ Face
- sim/model/instrument-lighting/emission/red
- sim/model/instrument-lighting/emission/green
- sim/model/instrument-lighting/emission/blue
- controls/lighting/instruments-norm
+ 1.0
+ 0.2
+ 0.0
+ sim/model/material/instruments/factor
diff --git a/Aircraft/c172p/c172-help.xml b/Aircraft/c172p/c172-help.xml
index bf13aadac..996c18d27 100644
--- a/Aircraft/c172p/c172-help.xml
+++ b/Aircraft/c172p/c172-help.xml
@@ -4,6 +4,10 @@
Ctrl-c
Panel hotspots and labels
+
+ l/L
+ Increase/decrease panel lighting
+
_________Engine Start Checklist_________
Mixture: Rich
diff --git a/Aircraft/c172p/c172p-set.xml b/Aircraft/c172p/c172p-set.xml
index 88621ed1c..0b7e7e874 100644
--- a/Aircraft/c172p/c172p-set.xml
+++ b/Aircraft/c172p/c172p-set.xml
@@ -241,23 +241,47 @@ Started October 23 2001 by John Check, fgpanels@rockfish.net
-
-
- s
- Toggle Starter Switch
-
- property-assign
- /controls/switches/starter
- 1
-
-
-
- property-assign
- /controls/switches/starter
- 0
-
-
-
+
+
+ L
+ Decrease Panel lighting
+
+ property-adjust
+ controls/lighting/instruments-norm
+ -0.1
+ 0
+ 1.0
+ 0
+
+
+
+ l
+ Increase Panel lighting
+
+ property-adjust
+ controls/lighting/instruments-norm
+ 0.1
+ 0
+ 1.0
+ 0
+
+
+
+ s
+ Toggle Starter Switch
+
+ property-assign
+ /controls/switches/starter
+ 1
+
+
+
+ property-assign
+ /controls/switches/starter
+ 0
+
+
+