Ключевые слова: alternative, background, bright, bulb, concept, conceptual, conservation, eco, ecology, economy, efficiency, efficient, electric, electricity, energy, environment, environmental, field, fluorescent, friendly, grass, green, household, idea, improvement, lamp, light, lightbulb, low, luminosity, modern, natural, object, outdoor, pollution, power, renewable, resource, saving, savings, source, spiral, supply, technology, watt, wattage, white,