Ключевые слова: background, button, closeup, conservation, control, earth, economic, electric, electrical, electricity, empty, energy, environment, environmental, equipment, frame, home, house, household, idea, illuminated, interior, light, light switch, object, off, office, one, outlet, panel, plastic, plug, power, pulling, save, save energy, save the world, saver, savings, single, socket, switch, switch off, switch on, technology, texture, turn, wall, white,