Ключевые слова: background, bright, brightly, bulb, choice, clean, clothing, color, compact, conservation, copy, economical, efficiency, electricity, energy, environment, environmental, environmentally, equipment, fluorescent, fragility, fuel, generation, glass, glowing, household, ideas, illuminated, inspiration, kilowatt, lamp, light, lightbulb, lighting, lit, luminosity, power, preserved, saver, saving, savings, screw, single, space, sparse, twisted, vibrant, white,