Material of light: Extra Strength Plastic PC & Polyepoxide Solar cell: Crystalline silicon 3V/90mA Storage component: Ni-MH AA 1.2V/1200mAh*2pcs; Light source: 1pc super bright LEDs Color of light: Red, green, blue, white, yellow Light mode: Flash type or constant type Work Temperature: -25 to +75℃ (Ni-Mh batter) or -40 to + 85℃ (super capacitor) Work Time: Over 12 hrs after 1 sunny day charge or 3-8 nights contineously if fully charged Visible distance: More than 800m Compression Resistance: 30 tons IP rate: IP67 Product size: Φ100*58.5mm N.w.: 0.3kg Life time: Over 5 years Applications: 1. Road side light 2. Pedestrian Walkway 3. Decoration and caution sign etc.