Key Specifications/Special Features: Materials of light: aluminum alloy and PC Solar cell: crystalline silicon, 2V/80mAh Storage component: Ni-MH HT AA, 1.2V/600mAh Light source: 6 pieces of super bright LED Color of light: red, green, blue, white and yellow Light mode: one color constant type or flash type Working temperature: -25 to 80°C Working time: over