This is what do you get when you merge Green Lantern with Iron Man.
In 1997 Amalgam Comics presented Iron Lantern (Hal Stark). This One Shot is an amalgamation of DC's Green Lantern (Hal Jordan) and Marvel's Iron Man (Tony Stark).
Amalgam Comics was a collaborative project between the comic companies Marvel Comics and DC Comics. This project consists of a number of comic series in which well-known Marvel characters and DC characters are merged into new characters. The project consisted of a series of 12 comic books, which were published in 1996, around the same time as the DC versus MARVEL mini-series. A second set of 12 comic books followed a year later.
More information about this comic book: https://comicvine.gamespot.com/iron-lantern/4005-26241/