diff --git a/wordclock/lightlevelmapping.m b/wordclock/lightlevelmapping.m
index 85282f4..08afaf7 100644
--- a/wordclock/lightlevelmapping.m
+++ b/wordclock/lightlevelmapping.m
@@ -1,8 +1,8 @@
 function lightlevelmapping()
-MINBRIGHTNESS = 1;
+MINBRIGHTNESS = 3;
 MAXBRIGHTNESS = 10;
 
-LIGHTSENSOR_BOTTOM = 0;
+LIGHTSENSOR_BOTTOM = 3;
 LIGHTSENSOR_TOP = 150;
 
 x = [LIGHTSENSOR_BOTTOM - 10:LIGHTSENSOR_TOP + 10];