Ключевые слова: background, black, blue, bright, bulb, concept, creative, design, efficient, electric, electricity, element, energy, equipment, filament, glasses, glowing, graphic, icon, idea, illuminated, illumination, imagination, innovation, intelligent, invention, isolated, lamp, light, light bulb, manycoloured, object, power, shine, shiny, signs, simple, solution, symbol, technology,