Ключевые слова: background, bulb, calculation, calculator, changing, creative, eco, ecology, efficiency, efficient, electric, electrical, electrician, electricity, energy, energysaving, flat, fluorescent, glass, globe, green, idea, innovation, lamp, lay, led, light, lightbulb, modern, new, power, recyclable, replace, save, save planet, saving, space, technology, top, top view, utility,