Ключевые слова: alternative, background, bright, bulb, business, concept, conservation, consumption, creative, design, different, earth, eco, ecological, economy, efficiency, electricity, energy, environment, environmental, equipment, glass, global, glowing, green, idea, innovation, inspiration, invention, lamp, leaf, light, light bulb, lightbulb, nature, object, planet, plant, power, protection, renewable, resource, save, solution, sustainable, symbol, technology, tree, warming, white,