1.Solar cell:poly-crystalline silicon/single-crystalline silicon(3V,75mA) 2.Storage battery:Ni-MH (1200mAH)/super capacitor(50F) 3.Light source:super luminosity LED 4.LED quantity:6 pcs or 3pcs 5.Light source color:red,green,blue,white,yellow(for any choice) 6.Luminous mode:varying type/constant type 7.Work time:more than 120 hrs for varying type,and above 72 hrs for constant type(standard luminosity intensity) 8.Work circumstance: -25C to +75C. 9.Material: aluminum alloy and polycarbonate 10.IP rating:IP68      Resist compression:30tons 11.Service life:5 years(Ni-MH )or 15 years(super capacitor) 12.View distance:over 800m 13.Warranty period:24months