Update FUT035Z.md (Koenkk#1656)

* Update FUT035Z.md

Add pairing instructions

* Update FUT035Z.md

Author: Kostecki

docs/devices/FUT035Z.md

@@ -23,7 +23,12 @@ pageClass: device-page
 
 
 <!-- Notes BEGIN: You can edit here. Add "## Notes" headline if not already present. -->
+## Notes
 
+### Pairing
+The device will enter pairing mode when turned on, if it has not been paired previously. Pairing mode can be forced by pressing the SET button 3 times in succession.
+
+The lights connected to the controller will fade in and out when the controlled is in pairing mode.
 
 <!-- Notes END: Do not edit below this line -->