Ключевые слова: abstract, background, black, blue, bright, bulb, concept, conceptual, conservation, creative, earth, efficiency, electric, electricity, energy, environment, filament, future, gases, generation, glass, global, globe, glow, green, idea, imagination, innovation, inspiration, intelligent, invention, isolated, landscape, light, lightbulb, nature, planet, pollution, power, shine, solution, sun, technology, think, utilities, warming, watt, white,