Ключевые слова: black, blackboard, brainstorm, bright, bulb, business, chalkboard, concept, conceptual, copy space, creative, creativity, design, economy, efficiency, electric, electrical, energy, genius, glass, glowing, icon, idea, ideas, illuminated, illumination, image, imagination, incandescent, innovation, inspiration, intelligence, invention, lamp, light, lightbulb, nobody, object, power, shine, shining, shiny, sign, solution, success, symbol, technology, tungsten,