Ключевые слова: background, bright, bulb, change, concept, conservation, eco, ecology, economical, economy, electric, electrical, electrician, electricity, energy, environment, female, fix, glass, hand, home, house, illuminate, illumination, incandescent, lamp, led, light, lightbulb, maintenance, man, person, power, repair, replace, saving, service, technology, uniform, voltage, watt, white, woman,