... for residential, road, park and so on. High quality solar panel absorbs sunlight and convert into electricity energy, then charges ... maintenance-free battery and finally LED street lights automatically when day off, auto-off when day break. We ... : 60W, LED Chip from bridgelux of USA 110-130lm/w.Solar Panel: 2x90W, monocrystalline or polycrystalline.Battery: 2x100Ah/12v, maintenance ...