Solar Underground lighting Series(QH-08A) Solar cell:polycrystalline silicon/monocrystalline silicon Light source: super luminosity LED Luminous mode: Constant Type Work time:more than30hoursfor Constant(full charge constant CN) Light material:Aluminum alloy glass and stainless steel Work temperature:-25°Cto+75°C Light material : Polycarbonate Resist compression:20tonsv Waterproof grade:IPMore than 67 Life: More than5years(Ni-MH)orMore than15years(super Capacitor) view distance:over800m View ranty: 14months Installation remarks: gum fix NO.ctns: 40pcs Packing Meas(CM):52.3×21.5×26 N.W(KG):9.6 G.W(KG):10.1