Ключевые слова: add, background, begin, bright, brown, bulb, business, change, clean, consumption, creation, creative, creativity, design, eco, ecology, economical, economize, efficient, electric, electricity, energy, environmentally, friendly, generation, glass, globe, glowing, go, green, holding, human, idea, incandescent, innovation, invention, lamp, leaf, led, light, lightbulb, modern, nature, power, saving, symbol, technology, tree, two,