Lighting and ballast power voltage regulators for electric power; voltage stabilizing devices; microprocessor controlled systems composed of microprocessors and computer software for operating microprocessors and lighting and ballast power voltage regulators used to operate high intensity discharge ballast type lamps, fluorescent lamps and linear reactor ballast; ballasts and electric resistors that maintain the electrical current through fluorescent lamps and high intensity discharge lamps at the desired constant value; ballasts and electric resistors that provide the necessary starting voltage and electrical current for fluorescent lamps and high intensity discharge lamps; power reduction systems composed of power controllers and lighting and ballast power voltage regulators for fluorescent lamps, metal halide lamps, high pressure sodium lamps, and pulse start lamps; automatic by-pass systems composed of microprocessors and power controllers and lighting and ballast power voltage regulators to ensure continuous flow of electricity to high intensity discharge ballast type lamps; fluorescent lamps and linear reactor ballast; thermal magnetic circuit breakers to detect and protect against voltage cycle interruption, short circuit and overload; and equipment to distribute and condition electric power, namely, harmonic filters to reduce harmonic distortions on lighting circuits