"Star Wars 7" character Kylo Ren's crossguard lightsaber's technology has been revealed.

An image posted on Reddit shows a display at Disneyland that describes how the Ren's controversial lightsaber works.

"Kylo Ren's unusual lightsaber is an ancient design, although the one he carries is recently constructed," reads the description. "The crossguard blades, or quillons, are raw power vented from the primary central blade."

The unique design has been a hot topic since it debuted in the movie's first trailer.

"It was a number of conversations [that led to the design]," explained Abrams of the lightsaber's design in an interview Collider. "It was a sketch that became a whole thing and, you know, this was not done without a lot of conversation and it's fun to see people have the conversation that we had, but in reverse."

"Star Wars 7: The Force Awakens" is the latest installment to the long-running sci-fi saga that began with 1977's "Star Wars: A New Hope." It also marks the franchise's first release under the Walt Disney Company, who bought the rights to the series from Lucasfilm in 2012.

Returning to their roles are Mark Hamill as Luke Skywalker, Carrie Fisher as Leia Organa and Harrison Ford as Han Solo. Series Newcomers include John Boyega (Attack the Block) as Finn, Daisy Ridley (Mr. Selfridge) as Rey, Oscar Isaac (X-Men: Apocalypse, A Most Violent Year) as Poe Dameron, Gwendoline Christie (Game of Thrones) as Captain Phasma and Andy Serkis (Lord of the Rings) as Supreme Leader Snoke.

"Star Wars 7: The Force Awakens" bows Dec. 18, 2015, followed by "Rogue One: A Star Wars Story," the franchise's first standalone film on Dec. 16, 2016. "Star Wars 8" releases on May 26, 2017 followed by the "Han Solo Star Wars Anthology" movie on May 25, 2018. "Star Wars 9" arrives sometime in 2019, followed by the third "Star Wars Anthology" movie in 2020.