Silviron
Flashlight Enthusiast
Good luck!
Interesting article. Don't know if they will be successful. Seems like they could do better on different batteries....
http://www.newscientist.com/news/news.jsp?id=ns99995077
Interesting article. Don't know if they will be successful. Seems like they could do better on different batteries....
http://www.newscientist.com/news/news.jsp?id=ns99995077