This is our own patented product, it is different from other products of the same field.        
1) Energy saving      
2) Waterproof.          
3) Three patterns of warning.        
4) Can be used on any car or put on the road.      
5) Magnet          
6) Folding. With adjustable magnetic base.
7) Can be used with battery or 12V power, or can be connected with the power of car.
8) The distance can be beyond 400 meters in the daytime and 500 meters at night.      
Spec: 46× 44 cm