Ключевые слова: background, building, bulb, business, button, closeup, concepts, conservation, control, electric, electricity, energy, environment, environmental, equipment, ethnicity, feature, fuel, generation, home, household, human, illuminated, inspiration, interior, lamp, life, light, line, objects, off, people, person, power, save, saver, savings, start, supply, switch, technology, toggle, tossing, turn, wall, white,