Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; Lighting ballasts; electric Lighting dimmers; Batteries for lighting; Light emitting diodes; Electrical power adapters; Power regulating apparatus; Electric power supply units; Electric power converters; Power modules; Voltage converters; Voltage-to-current converters; Heat sinks for use in electronic components; Circuit boards; electric Plugs, electric sockets and other ele...