Electrical Index parameter: solar battery:5w/8.7V crystalline silicon solar battery storage battery:6v/20Ah non-safeguard lead-acid storage battery Light source:260 Ultra-high yellow shining LED Rated working Voltage:direct current 6V Rated working Electric Current:2A Physics Index Parameter: Shining Area:706.5cm2(Φ30cm) Working Environment:TEmperature-40^oC-74^oC Humidity:10-95% Shining Charateristics:Frequency 50times/minute Effective Visible distance:5km Color Tone:590mm±1mm Life of machine wick:50000hours Grade of Crust Defence:IP5X dust-proofed;IP3X rainwater-proofed