I don't know much about this artist but I have come across is neon signs on Tumblr. The Belief one in particular. Though he mostly goes uncredited it was an easy search to find, unlike some uncredited art on Tumblr.
Belief. 1974 refabricated 2009.
Mondrian's Chair. 1975.
Some of his art had to be recreated as it was destroyed in an earthquake. I prefer his neon/fluorescent work to his later stuff.
--> Source: www.stevenwolffinearts.com