Ключевые слова: alternative, background, bio, bulb, care, clean, concept, creative, earth, eco, ecologic, ecological, ecology, electric, electricity, energy, environment, environmental, friendly, fuel, global, green, idea, innovation, lamp, leaf, light, lightbulb, line, natural, nature, planet, plant, power, protection, recycle, recycling, renewable, save, saving, solar, solution, sustainable, symbol, technology, tree, water,