Abstract: Disclosed is a lighting system and a method to change the internal light source of the lighting system, wherein maintenance and aesthetic considerations make it necessary to access the internal light source solely from the front of the lighting system without moving or removing a sign face. Access, in part, is provided by a light baffle track system inside the light system that turns a flexible light baffle (i.e., the light source) within the service box from a substantially vertical orientation to a substantially horizontal orientation as the flexible light baffle is removed and reinstalled through the service box and front access door. The flexible light baffle and light baffle track system work in concert to efficiently turn the flexible light baffle solely within the service box such that the height and depth of the service box is minimized.