Key Specifications/Special Features:
    Solar LED traffic sign speed limit
    Diameter: 600mm
    Solar battery power: 5W (service lifespan: 15 years)
    Storage battery power: 12V/7Ah (service lifespan: 2 years)
    LED service lifespan: 100,000 hours
    LED color: yellow
    Viewing distance: more than 500m
    Flashing frequencies: 24 ±2 times/minute
    Can work for more than 180H without the sun