diff --git a/kuukar/kuukar_sensors.py b/kuukar/kuukar_sensors.py
index 8b81d36..03fff7a 100644
--- a/kuukar/kuukar_sensors.py
+++ b/kuukar/kuukar_sensors.py
@@ -44,7 +44,7 @@ class sensors:
         return self.__humidity
 
     def __light_sensor_callback(self, data):
-        self.__brightness = data[2]
+        self.__brightness = (4096-float(data[2]))/4096*100
 
     def __dht22_callback(self, data):
         humidity = data[3]