LED street lights are designed to operate outdoors for years, providing reliable illumination for roads, highways, residential communities, parking lots, industrial zones, and public spaces. Unlike indoor lighting, outdoor fixtures are constantly exposed to rain, humidity, dust, snow, wind, and drastic temperature changes. Because of these harsh environmental conditions, waterproof performance is not just an additional feature—it is one of the most critical factors that determines the reliability, safety, and lifespan of an LED street light.