Ahn is a member of a group of young light artists including Olafur Eliasson, Ivan Navarro, Spencer Finch, and Leo Villareal.
Hilarie M. Sheets, contributing editor of ARTnews who also writes regularly for The New York Times, Art in America, and Art + Auction, said his work is "At once thrilling and ominous, it suggests a rabbit hole to another world—underwater, outer space, afterlife—or journey to the unknown, the kind of leap of faith involved in the artist’s own passage to an unfamiliar country and language.
[4][5] Since 2003 Chul Hyun Ahn has exhibited extensively nationally and internationally, and his work can be found in numerous important private and public collections.
In a review of Ahn's 2008 C. Grimaldis Gallery solo exhibition, Phenomena: Visual Echo art critic Cara Ober wrote: "What does infinity look like?
The constructions of plywood and fluorescent light with exposed electrical cords unavoidably recall Donald Judd and Dan Flavin, but Ahn uses these industrial materials to a different end.