diff --git a/src/user_code.hpp b/src/user_code.hpp
index d445978..d2703bc 100644
--- a/src/user_code.hpp
+++ b/src/user_code.hpp
@@ -40,21 +40,21 @@ I0-I2: Fan Switch
 */
 
 // Pin Definition
-#define FAN1_PIN 0
-#define FAN2_PIN 1
-#define FAN3_PIN 2
-#define LIGHT1_PIN 3
-#define LIGHT2_PIN 4
-#define LIGHT3_PIN 5
-#define LIGHT4_PIN 6
+#define FAN1_PIN 4
+#define FAN2_PIN 5
+#define FAN3_PIN 6
+#define LIGHT1_PIN 0
+#define LIGHT2_PIN 1
+#define LIGHT3_PIN 2
+#define LIGHT4_PIN 3
 #define AIR_PURIFIER_PIN 7
-#define FAN1_BTN_PIN 0
-#define FAN2_BTN_PIN 1
-#define FAN3_BTN_PIN 2
-#define LIGHT1_BTN_PIN 3
-#define LIGHT2_BTN_PIN 4
-#define LIGHT3_BTN_PIN 5
-#define LIGHT4_BTN_PIN 6
+#define FAN1_BTN_PIN 4
+#define FAN2_BTN_PIN 5
+#define FAN3_BTN_PIN 6
+#define LIGHT1_BTN_PIN 0
+#define LIGHT2_BTN_PIN 1
+#define LIGHT3_BTN_PIN 2
+#define LIGHT4_BTN_PIN 3
 #define AIR_PURIFIER_BTN_PIN 7
 
 // External LCD Configuration