Ключевые слова: abstract, alternate, alternative, background, bright, brilliant, bulb, cfl, character, concept, conservation, copy, creative, drawing, ecology, economic, efficiency, efficient, electric, electrical, electricity, energy, environment, friendly, future, glass, glowing, house, icon, idea, illuminate, illustration, incandescent, innovation, invention, lamp, light, lightbulb, modern, new, old, power, recycle, save, saving, shining, simple, sketch, symbol, technology,