Ключевые слова: alternative, bulb, concept, conservation, consumption, eco, ecological, ecology, efficiency, electric, electricity, energy, environment, environmental, future, generator, global, green, idea, illuminated, innovation, invention, lamp, light, lightbulb, natural, power, recycling, renewable, resource, rotor, save, source of energy, symbol, technology, turbine, watt, white, wind, windmill,