Ключевые слова: art, black background, bright, brilliant, bulb, bulb icon, business, clipart, concept, creative, creativity, design, doodle, drawing, education, efficient, electric, electricity, energy, energysaving, genius, glass, graphic, hanging, hung, icon, idea, illumination, imagination, innovation, inspiration, invention, inventive, isolated, lamp, light, lightbulb, line, lowenergy, outline, power, sign, simple, solution, symbol, technology, thinking, white,