Ключевые слова: background, bright, bulb, ceiling, choice, cold, comparing, concept, conservation, creative, creativity, eco, ecology, economical, economy, efficiency, efficient, electric, electricity, energy, environment, environmental, fluorescent, glass, glowing, idea, illumination, innovation, inspiration, invention, lamp, led, light, lightbulb, load, modern, money, new, object, power, reducing, replacement, save, solution, technology, voltage, warm, white, wire, wood,