Ключевые слова: background, bright, brightly, bulb, concept, conservation, conserve, creative, eco, ecology, economical, efficiency, efficient, electric, electrical, electricity, energy, environment, environmental, equipment, fluorescent, generation, glass, glowing, green, idea, illuminated, illumination, incandescent, innovation, inspiration, invention, isolated, lamp, light, lightbulb, modern, nature, power, recycle, save, saver, savings, shiny, solution, spiral, technology, twist, watt, white,