... time: 12 hours/day ItemParameter1,Working model: solar power electrical 2,Solar panel :Mono crystalline 17.5v / 200w ... 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, ... 15,Warranty:LED: 5years, Battery: 3 years, Controller: 2 years, solar panel: 5years 30w LED solar street light