Ключевые слова: background, button, clean, conservation, consumption, control, design, different, domestic, door, economy, electric, electrical, electrician, electricity, energy, environment, equipment, facilities, home, house, household, illumination, indoors, interior, light, modern, nobody, object, off, office, on, plastic, power, resource, room, safety, saving, switch, switches, technology, turning, utility, voltage, wall, white,