Mian body: Polyearoonate Case Colors:Red,Orange,yellow,white,Blue,Green. Solar cell:Sillcon Monc-Crystalline type. Energy Storage: Ultracapacitor Chargeing time: 3 hours under sunlight 6 hour under shade 8 hour under rain Working time: Night Time Temp Range: -40'C-70'C Size ¦µ140*50mm 950g Export Markets Warning,intersections,accident-prone areas http://chuangxinsolar.ebigchina.com/sdp/152813/4/pl-942652.html