diff --git a/Adafruit_TSL2561_U.cpp b/Adafruit_TSL2561_U.cpp
index 3c7310b..b9b9adc 100644
--- a/Adafruit_TSL2561_U.cpp
+++ b/Adafruit_TSL2561_U.cpp
@@ -29,6 +29,10 @@
 
 #include "Adafruit_TSL2561_U.h"
 
+#define TSL2561_DELAY_INTTIME_13MS    (15)
+#define TSL2561_DELAY_INTTIME_101MS   (120)
+#define TSL2561_DELAY_INTTIME_402MS   (450)
+
 /*========================================================================*/
 /*                          PRIVATE FUNCTIONS                             */
 /*========================================================================*/
@@ -140,13 +144,13 @@ void Adafruit_TSL2561_Unified::getData (uint16_t *broadband, uint16_t *ir)
   switch (_tsl2561IntegrationTime)
   {
     case TSL2561_INTEGRATIONTIME_13MS:
-      delay(14);
+      delay(TSL2561_DELAY_INTTIME_13MS);  // KTOWN: Was 14ms
       break;
     case TSL2561_INTEGRATIONTIME_101MS:
-      delay(102);
+      delay(TSL2561_DELAY_INTTIME_101MS); // KTOWN: Was 102ms
       break;
     default:
-      delay(403);
+      delay(TSL2561_DELAY_INTTIME_402MS); // KTOWN: Was 403ms
       break;
   }