Ключевые слова: alert, atmosphere, backlit, beacon, caution, city, construction, control, dramatic clouds, dusk, electrical, electricity, elevation, engineering, equipment, evening, glow, hazard, heavy, high, illuminated, industrial, infrastructure, installation, lamp, machinery, maintenance, metal, navigation, outdoor, post, powerful, protective, radiant, red light, safety, security, signal, site, sky, steel, sun flare, sunset, technology, tower, twilight, urban, warning light, weather,