Abstract: A bank of high-intensity lamps is carried atop an emergency vehicle or the like. The bank is coupled to the upper end of a mechanical actuator in a manner to permit both rotation of the bank about a vertical axis and tilting of the bank between generally upright and horizontal orientations. Another mechanical actuator is employed for the purpose of raising and lowering the bank along with the first actuator. Various electrical circuitry controls and emplements lamp energization and signalization or interlocking with respect to different movements of the bank of lamps.