Ключевые слова: alternative, background, blue, bright, bulb, candle, cell, conservation, design, ecological, ecology, electric, electrical, electricity, energy, environment, environmental, equipment, global, green, high, illuminated, industrial, industry, lamp, light, metal, modern, natural, nature, outdoors, panel, pole, post, power, renewable, safety, shiny, sky, solar, street, streetlight, summer, sun, sunlight, sunny, system, technology, urban, white,