Solar flashing warning signboard ：The product applies the power supply principle of low-light-type amorphous silicon solar cell . It makes use of solar energy to supply the power (without batteries). The product is about a brand publicity craft boutique, but also an innovative promotional gift, which can make high-quality LED light flashing as long as there is sunlight. Its novel design, avant-garde fashion, novel advertisement make it different from other products. This product packed disposabally can be used more than 10 years old. We can manufacture them according to the customer’s requirements.