Ключевые слова: apartment, appliance, background, closeup, connection, consumption, control, device, dirty, double, efficiency, electric, electrical, electricity, energy, engineering, equipment, frame, grey, home, hotel, house, household, indian, industrial, insert, interior, jack, nobody, open, outlet, plastic, plug, power, power socket, room, safety, save, security, simple, single, supply, system, technology, texture, type, voltage, wall, wallpaper,