Ключевые слова: bright, bulb, concept, contour, design, diode, economical, economy, efficiency, electric, electrical, electricity, element, energy, graphic, icon, illumination, illustration, innovation, lamp, led, light, lightbulb, lightemitting, logo, luminosity, modern, object, pictogram, power, saving, shape, sign, silhouette, simple, solution, symbol, technology, watt, yellow,