N S ETA-SEI

Current rectifiers; electric transformers; [ power distribution or control machines and apparatus, namely, electric light dimmers, LED light controls, LED circuit boards, voltage regulators, voltage stabilizing power supplies, voltage surge protectors, and electrical power supplies equipped with electronic controls and electric meters; ] * AC/DC converters and DC/DC converters; * electric and electro-magnetic meters and testers for electrical power supplies; telecommunication machines and apparatus, namely, modems, routers, telephones, radios, televisions, and telecommunication hardware and software for remote control of electrical power supplies; electronic machines and apparatus, namely, electrical power supplies