... can stand the impact and the roll BrandYiyuanProduct nameSolar road studItem numberY-D11Product sizeL123.5*W27.5*H42mmSolar panel ... consumption, used solar power, low cost.3.Non Hazardous Substances, and not pollute the environment.4.High warning effect, used ... chip from Taiwan, active luminous, high luminance, dynamic warning.5.Stable property, designed by integrated circuit and thermostability ...