Height: 3~4.5m System Voltage: DC 12V Light Source: LED Working Hour: 4~12h/day (Optional) Number of Rainy Day: 2~7 days (Optional) Solar Panel: Single/Polycrystalline silicon solar cell panels, life expectancy 25 years Battery: Sealed, maintenance-free lead-acid batteries, solar energy, warranty 2 years, life expectancy 5 years. The configuration said above is for reference only and the actual configuration is designed according to the local climate conditions and the cusromer requirements.