Ключевые слова: background, bright, bulb, business, clean, concept, conservation, creative, creativity, earth, eco, eco friendly, ecological, ecology, efficiency, electric, electricity, energy, environment, environmental, friendly, fuel, future, global, globe, glowing, green, growth, idea, illustration, innovation, inspiration, invention, lamp, leaf, life, light, lightbulb, natural, nature, outlet, planet, plant, pollution, power, protect, protection, recycle, renewable, responsibility, reusable, reuse, save, solar, solution, sunlight, sustainable, symbol, technology, water, world,