Ключевые слова: background, bright, bulb, bulbs, collage, color, comparison, concept, conservation, creative, creativity, design, different, eco, ecology, economical, efficiency, electric, electricity, energy, environment, equipment, fluorescent, generation, glass, glowing, idea, illuminate, illumination, incandescent, innovation, inspiration, invention, lamp, led, light, lightbulb, nature, object, power, recycle, save, saving, shape, solution, symbol, technology, tungsten, watt, white,