diff --git a/home/linux/gui/base/eye-protection.nix b/home/linux/gui/base/eye-protection.nix
index 84142595..04a2637b 100644
--- a/home/linux/gui/base/eye-protection.nix
+++ b/home/linux/gui/base/eye-protection.nix
@@ -23,11 +23,14 @@
     settings = {
       general = {
         fade = "1"; # gradually apply the new screen temperature/brightness over a couple of seconds.
+
         # it is a fake brightness adjustment obtained by manipulating the gamma ramps,
         # which means that it does not reduce the backlight　of the screen.
         # Preferably only use it if your normal backlight adjustment is too coarse-grained.
-        brightness-day = "1.0";
-        brightness-night = "0.8";
+        #
+        # brightness-day = "1.3";
+        # brightness-night = "1";
+
         location-provider = "manual";
 
         # by default, Redshift will use the current elevation of the sun