Ключевые слова: background, black, bright, bulb, business, concept, creative, creativity, design, electric, electrical, electricity, energy, equipment, evolution, filament, first, glass, glowing, green, household, idea, illuminated, image, innovation, lamp, leadership, led, light, lightbulb, nobody, object, point, power, progress, row, shape, socket, supply, symbol, technology, unique, watts,