Ключевые слова: background, bright, bulb, choice, closeup, concept, conservation, conserve, eco, ecofriendly, ecology, economical, economy, efficiency, electric, electrical, electrician, electricity, energy, equipment, evolution, fluorescent, glass, glowing, green, hardware, idea, illumination, incandescent, innovation, invention, lamp, led, light, lighting, metal, new, objects, old, perpetual, plastic, power, progress, recycle, savings, science, shine, technology, view, white,