Batteries and battery chargers; Batteries, electric; Electronic regulating and control devices for the operation of light emitting diodes; Facsimile machines; Galvanic batteries; Magnifying glasses; Pedometers; Photovoltaic cells; Semi-conductors; Smartwatches; Switches, electric; Transformers; Voltage stabilizing power supply; Electric control panels; Electric wires and cables; Electrical plugs and sockets; Electrical arc detection and suppressing device used in low voltage switchgear; Measu...