1.Apply ultra-bright LED.
2.Single-side alternate flashing- longer warning distance.
4.Aluminum alloy body and powder coated surface- better weather resistance.
5.Replaceable storage battery - longer lifespan.
6.High-efficient solar power battery - environmental friendly and easier for installation.
7.Tempered glass enclosed solar power panels - impact and scrape resistance.
For installing at the tunnel portal, separation island, bridge end and remote warning location.