1. Solar panel: 30W-40W, monocrystalline silicon or polycrystalline silicon. 2. Battery: 12V, maintenance-free sealed lead-acid (colloid) battery. 3. Microcomputer control system: intelligent charging control & battery protection (overcharge protection, overdischarge protection, reverse-connection protection), optical control, time control and temperature compensation functions. 4. Light source: LED. 5. Operating temperature: -20℃ to 50℃. 6. Lamp pole: hot-dip galvanized steel spray. 7. Pole height: 3-4 meter. 8. Working time: 8-10 hours a day, normal illumination over 5 continuous cloudy or rainy days. 9. Wind resistance: over 32.6m/s.
