Ключевые слова: background, bangle, black, bright, bulb, business, concept, conservation, creative, design, efficiency, electric, electricity, energy, environment, equipment, fuel, generation, glass, glowing, green, hang, idea, illuminated, illumination, image, incandescent, innovation, inspiration, lamp, lightbulb, lit, nature, object, power, recycle, recycling, render, save, saver, savings, shape, shine, shiny, solution, symbol, technology, thinking, white,