Actually I don't recommend anybodies product, I tell everyone to make their own generators and make their own IS/CS! There are too many high priced generators out there and soory if that page was taken as a product ad! It is so easy and cheap to make a silver generator out of a CLD(current limiting diode) and a wall wart or batteries, a piece of 99.9% silver, and a couple of wires and a multimeter. It all can be done for under $75.00!!