Converters; Converters, electric; Amplifiers; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; DC/AC power converters; Distribution boxes for electrical power; Electric converters; Electric control panels; Electric power converters; Electrical circuit boards; Electrical controllers; Electrical controlling devices; Electrical outlets; Electrical plug device enabling connection and disconnection of power and/or control cables; Electronic circuit board; Electronic controllers for use with power converters; Electronic controls for motors; Electronic frequency converters for high velocity electro motors; Frequency converters; Frequency converter for actuators; Frequency stabilizers; Grids for batteries; High voltage reactors; High voltage transformers; High-frequency switching power supplies; Inverters; Inverters for power supply; Lead-acid battery testing, desulfating and regenerating devices; Photovoltaic inverters; Photovoltaic systems that convert sunlight into electric and thermal energy; Power adapters; Power amplifiers; Power controllers; Power distributing boxes; Power inverters; Power line conditioners; Power supplies; Power switches; Power transformers for amplification; Power-line transmission machines and apparatus; Rectifier modules; Voltage monitor modules; Voltage regulators; Voltage stabilizers; Voltage stabilizing power supply