Ключевые слова: appliance, background, black, bulb, business, cable, collection, component, computer, connection, connector, cord, double, electric, electrical, electricity, energy, equipment, fuel, generation, home, house, industrial, industry, interior, invention, isolated, lamp, light, line, lowenergy, outlet, plastic, plug, power, prongs, set, simple, socket, spiral, supply, switch, technology, texture, voltage, volts, wall, watts, white, wires,