diff --git a/devices/led_ctrl.properties b/devices/led_ctrl.properties
index 67d0c21..3f07165 100644
--- a/devices/led_ctrl.properties
+++ b/devices/led_ctrl.properties
@@ -1,8 +1,8 @@
-#Mon Jun 19 16:38:19 CEST 2017
-maxValue=NaN
-minValue=NaN
+#Mon Jun 19 16:39:59 CEST 2017
+maxValue=1000.0
+minValue=0.0
 offset=0.0
-precision=-1
+precision=2
 resolution=NaN
 scale=1.0
-unit=null
+unit=V