An energy projector was a type of device that could emit an immobilizer beam. This particular projector had the capability to disable various technological systems, including starships and droids. Azmorigan, a crime lord of the Jablogian species, once tried to sell one of these projectors to Han Solo, who was the captain of the Millennium Falcon. Azmorigan claimed that the projector could disable technologies such as starfighters in addition to astromech droids.
The earliest mention of energy projectors can be found within the pages of the Knights of the Old Republic II: The Sith Lords: Prima Official Game Guide. Later, it made an appearance in the canon comic book, Powered Down, Part 1.