Abstract: An electrical device is provided for converting alternating current to direct current for an incandescent lightbulb circuit to extend the life of the bulb and reduce power consumption. The device provides a housing containing a diode rectifier adapted to be electrically connected to an alternating current source of supply and the incandescent lightbulb circuit. A resettable circuit breaker is employed to break the circuit when overloaded with an external resettable switch. The housing may further be provided with a low silhouette and a plug in order that the device may simply be plugged into an electrical wall receptacle. For ease of connection to the incandescent lightbulb circuit, an electrical receptacle may be provided on the exterior of the housing to receive a plug from the lightbulb circuit.