Abstract: A light bar for mounting on an emergency vehicle has a modular construction using trays for mounting lights. The trays are integral members having cells formed therein for receiving components of light fixtures. The light bar has two lighting tiers. The lights on the lower tier are received in the cells of the trays. The tops of the trays provide a platform for mounting lights on the upper tier. Alternatively, the upper-tier lights may be mounted on the upper shell of the housing of the light bar. Snap-fit fasteners are formed on the trays for mounting components of the lights. In one configuration, the light bar includes a speaker which has a driver mounted inside the light bar housing and a horn which fits in an opening in the housing and is coupled to the driver for transmitting audio signals.

Abstract: An improved socket assembly for a warning light includes a frustro-conical base and a lamp extending from the top of the base. The base contains electrical components for operation of the lamp and provides electrical connection from the bottom of the base. At least one annular recess is formed in the side of the base at a selected distance from the lamp. Inasmuch as the base is fabricated of a compressible material, it may be radially inwardly compressed to mate the recess with an opening formed within a lamp housing.

Abstract: A mirror assembly for use with a warning light which has a reflector that is capable of rotating a beam of light emanating from a lamp located at its focal point. The mirror assembly comprises a first set of first, second and third mirrors mounted to the attachment for reflecting the intercepted light in a predetermined direction, where the reflections occur first from the first mirror, then from the second mirror and finally from the third mirror; and a port between the first and third mirrors for passing light to the second mirror such that the reflected beam from the second mirror is further from the focal point than the reflected beams from the first and third mirrors. A warning light is also provided which may be used either alone or in combination with the aforesaid mirror assembly.