Never tried the Hummer lights but the replacement interior light from DMC Houston is a very high quality unit Mine, at least, was not glass but a very high quality acrylic that looks enough like glass, and has a similar heft or "mass" , that it would be easy to mistake for glass. It has Hella molded in the lens. The metal frame has a spring loaded bullet catch to hold it in, making it easy to pry out when needed without any damage. Highly recommended and it requires no modification \\Mark.