Well?<br><br>I was watching that "How its Made" TV show about light bulbs , the manufacturer had a giant apparatus to test the bulbs , simply a large spinning wheel with electrical contacts - no sockets or outlets . Just hundreds go on and off per minute on the way to packaging .<br><br>I doubt that each adopter was tested in a wall outlet and pulled out and in and out and in - More then likely they were tested a conveyor belt for connectivity only.<br><br>IMO<br><br>