... :OSRAM 140lm/w, -Japan technology panel:Kyocera cell -12 years manufacturer Solar street light since Feb.2000We DesignWe Produce We ... is 100000 hours SOLAR PANEL is 25 years BATTERY is 4~5 years POLE is 15 years4.We are Professional Solar street light ... Guolu, 12 years professional manufacturer of solar street light,Founded in February 2000, has160 people, with12,000 square meters factory, certificated ...