diff --git a/sampleLight.h b/sampleLight.h
index 715732b..b1f5b0c 100644
--- a/sampleLight.h
+++ b/sampleLight.h
@@ -30,6 +30,12 @@
 #define SAMPLE_LIGHT_ENDPOINT 0x01
 #define SAMPLE_TEST_ENDPOINT 0x02
 
+/**********************************************************************
+ * TIMER CONSTANTS
+ */
+#define ZCL_LEVEL_CHANGE_INTERVAL 20 // Step 50 times a second, every 20ms
+#define ZCL_COLOR_CHANGE_INTERVAL 20 // see above
+
 /**********************************************************************
  * TYPEDEFS
  */
diff --git a/zcl_colorCtrlCb.c b/zcl_colorCtrlCb.c
index f160dd4..6642aa2 100644
--- a/zcl_colorCtrlCb.c
+++ b/zcl_colorCtrlCb.c
@@ -33,11 +33,6 @@
 
 #ifdef ZCL_LIGHT_COLOR_CONTROL
 
-/**********************************************************************
- * LOCAL CONSTANTS
- */
-#define ZCL_COLOR_CHANGE_INTERVAL 20 // Step 50 times a second, every 20ms
-
 /**********************************************************************
  * TYPEDEFS
  */
diff --git a/zcl_levelCb.c b/zcl_levelCb.c
index 6008ec2..83799ed 100644
--- a/zcl_levelCb.c
+++ b/zcl_levelCb.c
@@ -33,11 +33,6 @@
 
 #ifdef ZCL_LEVEL_CTRL
 
-/**********************************************************************
- * LOCAL CONSTANTS
- */
-#define ZCL_LEVEL_CHANGE_INTERVAL 100
-
 /**********************************************************************
  * TYPEDEFS
  */