Ключевые слова: background, bright, bulb, business, concept, conservation, creativity, design, earth, eco, ecological, electricity, energy, environment, environmental, equipment, friendly, glass, global, glowing, green, growth, hand, holding, idea, innovation, inspiration, invention, lamp, leaf, light, light bulb, lightbulb, nature, object, planet, plant, power, renewable, resource, saving, solution, sustainable, symbol, technology, thinking, tree, warming, watt, white,