Abstract: An artificial Christmas tree including a tree trunk extending from an aperture in an upper wall of a hollow tree base and having a plurality of optical fibers extending internally from the aperture in the base to light emitting points within simulated tree branches attached to the tree trunk by hinged tubular branch connectors. The base includes a light source and a removable cartridge-like disc holding tray for holding and rotating an infinite number of different selected user programmable colored discs between the light source and the optical fibers to create an infinite number of user created light displays within the tree.