diff --git a/wecker.sh b/wecker.sh
index a82b2a5..fba85b0 100755
--- a/wecker.sh
+++ b/wecker.sh
@@ -169,14 +169,17 @@ else
 fi
 
 # Calculate steps for brightness and color temperature per step
-brightness_step=$(bc <<< "($end_brightness - $start_brightness) / $steps")
+brightness_step=$(( (end_brightness - start_brightness) / steps ))
 echo "Brightness difference per step: $brightness_step"
-echo "Reached final brightness: $((brightness_step * steps)) from $end_brightness"
-colortemp_step=$(bc <<< "$start_colortemp / $steps")
+echo "Reached final brightness: $((brightness_step * steps + start_brightness)) from $end_brightness"
+
+colortemp_step=$(( start_colortemp / steps ))
 echo "Color temperature difference per step: $colortemp_step"
-echo "Reached final colortemp: $((start_colortemp - (colortemp_step * steps))) from $end_colortemp" 
+echo "Reached final colortemp: $((start_colortemp - colortemp_step * steps)) from $end_colortemp"
+sleep_duration=$((duration_seconds / steps))
+
 # Gradual adjustment of brightness and color temperature
-for ((i = 1; i <= $steps; i++)); do
+for ((i = 0; i <= $steps; i++)); do
   current_brightness=$(printf "%.0f" $(bc <<< "$start_brightness + ($brightness_step * $i)"))
   current_colortemp=$(printf "%.0f" $(bc <<< "$start_colortemp - ($colortemp_step * $i)"))
 
@@ -200,10 +203,16 @@ for ((i = 1; i <= $steps; i++)); do
     sleep 12
     echo "DEBUG: Wait 12 sec. between steps."
   else
-    sleep 27  # Changes every 30 (27) seconds
+    sleep $sleep_duration # Changes every 30 seconds
   fi
 done
 
+# Set to end values.
+current_brightness="$end_brightness"
+current_colortemp="$end_colortemp"
+set_brightness "$end_brightness"
+set_colortemp "$end_colortemp"
+
 # Execute the check_ip function.
 check_ip
 echo "$A72_ip"