Ключевые слова: ac outlet, background, building, button, concept, conservation, ecofriendly, ecologic, ecological, efficiency, electric, electrician, electricity, energy, environment, environmental, ethnicity, generation, household, inscription, interior, item, letters, light, light switch, message, metal, object, off, on, outlet, plastic, power, renewable, reprocessing, saver, saving, silver, supply, sustainable, switch, switch on, symmetrical, technology, text, white, wooden, word,