... time: 12 hours/day ItemParameter1,Working model: solar power electrical 2,Solar panel :Mono crystalline 17.5v / 200w ( ... 4m, hot-dip galvanized and spray coated, including solar panel bracket and lamp arm, 30 meters between ... .5 =0.44>0.3511,Suitable width of road :8-10m12,Working time:12 hours/day, 6 ... no sunshine )13,Condition of the wind solar hybrid street light:solar irradiation: 5kwh/m*m day 14, ...