There is a possibility that Len had inadvertently given a few wrong lens to those wanting the Aixiz lens for 445nm diodes. If the one you received does not have a gold/yellow look, or it looks blue in color, please find room 115 HIExpess and the venue or call 979 709 9593.
so I can give you the right lens.
sorry for the inconvience;;;Len(hakzaw1)