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 LED4.LED quantity:2pcs5.Light source color:red,green,blue,white,yellow(for any choice)6.Luminous mode:varying type/constant type7.Work time:more than 108 hrs for varying type,and above 24 hrs for constant type(standard luminosity intensity)8.Work circumstance: -25°C to +75°C。9.Material:polycarbonate10.IP rating:IP≧67 Resist compression:20tons11.Service life:>5 years(Ni-MH )or >15 years(super capacitor)12.View distance:over 800m13.Guarantee period:14 months