diff --git a/wordclock/wordclock.pde b/wordclock/wordclock.pde
index 1016075..646ee52 100644
--- a/wordclock/wordclock.pde
+++ b/wordclock/wordclock.pde
@@ -65,7 +65,7 @@ void SWversion(void);
 // DAY Brightness setting 0 = off    20 = full
 #define DAYBRIGHTNESS 20
 // NIGHT Brightness setting 0 = off    20 = full
-#define NIGHTBRIGHTNESS 20
+#define NIGHTBRIGHTNESS 15