Abstract: An assembly for mounting lights across the top portion of a vehicle has a pair of brackets attached to the vehicle between which a mounting bar is supported. One or more lights are supported on the bar, such lights normally being held in a raised or upright position. The bar is supported on the brackets for limited pivotal adjustment relative thereto, there being a locking bolt which operates in conjunction with a locking plate for locking the mounting bar in either the raised position or a lowered position which is typically ninety degrees relative to the raised position. To facilitate rotation to the lowered position, a cutout is provided in each of the brackets into which a stop member formed on each of the brackets extends, the stop members abutting against projections formed in the cutouts to arrest travel of the bar when it has traveled to the lowered position. Thus, the lights can easily be brought to a lowered position such as may be required to permit the vehicle to pass into a garage.