diff --git a/files/settings/i3.config b/files/settings/i3.config
index e12a729..bce1961 100644
--- a/files/settings/i3.config
+++ b/files/settings/i3.config
@@ -116,6 +116,20 @@ bindsym $mod+a focus parent
 # focus the child container
 #bindsym $mod+d focus child
 
+# Use the bracket keys to change the brightness.
+# light requires sudo privileges unless video group and udev are configured.
+bindsym $mod+bracketleft exec "light -U 5; notify-send 'Brightness Down' $(light -G)"
+bindsym $mod+bracketright exec "light -A 5; notify-send 'Brightness Up' $(light -G)"
+bindsym shift+$mod+bracketleft exec "light -U 25; notify-send 'Brightness Down' $(light -G)"
+bindsym shift+$mod+bracketright exec "light -A 25; notify-send 'Brightness Up' $(light -G)"
+
+bindsym XF86MonBrightnessUp exec "light -A 5; notify-send 'Brightness Up' $(light -G)"
+bindsym XF86MonBrightnessDown exec "light -U 5; notify-send 'Brightness Down' $(light -G)"
+bindsym shift+XF86MonBrightnessUp exec l"ight -A 25; notify-send 'Brightness Up' $(light -G)"
+bindsym shift+XF86MonBrightnessDown exec l"ight -U 25; notify-send 'Brightness Down' $(light -G)"
+
+# Use the comma and period keys to change volume.
+
 # Define names for default workspaces for which we configure key bindings later on.
 # We use variables to avoid repeating the names in multiple places.
 # Command Line