Abstract: A lighting system having one three-phase AC-to-DC converter, each connected to a plurality of DC-powered electronic ballasts for operating lamps. The three-phase AC-to-DC converter uses six rectifier diodes connected in a full-wave bridge configuration, does not contain a line frequency energy storage capacitor and is typically designed to operate more than one DC-powered electronic ballast. The AC-to-DC converter may be installed in a three-pole circuit breaker case so it can be mounted in a standard breaker panel. The three-phase AC-to-DC converter provides DC power with a low level of ripple to power the DC-powered electronic ballasts. The DC-powered electronic ballasts are connected to the three-phase AC-to-DC converter using two power wires plus a protective ground. Each of the DC-powered electronic ballasts contains a filter circuit connected between the power switching circuitry and the DC power input to prevent electromagnetic interference EMI.