Saltwater-powered flashlight

[Kirk]

Hey All!
Anybody have any experience with one of these http://secure.sovietski.com/cgi-bin/Sovietski.storefront/3d8ba80f029447029c4dc0a80a120681/Product/View/150400&2DF ? I like interesting lights (obviously, I'm here aren't I!). Looks like it would be a good emergency light for home use. Any comments/opinions?
Thanks,
Kirk