1.Solar panel: poly-crystalline silicon or mono-crystalline silicon
2.Power storage solution: Ni-MH battery or super capacitor
3.Light source: super bright LED
4.Led quantity: 4PCS
5.Led color: red, green, blue, white or yellow
6.Luminous mode: flashing type or constant type
7.Working time: more than 108 hours for flashing type; more than 24 hours for constant type after the battery is charged fully.
8.Working temperature: : -25degree to +75degree
9.IP grade: IP67
10.Resist pressure: 20tons
11.Material: polycarbonate
12.Size:119X115X22mm
12.Lifetime: 3-5years(Ni-MH battery) or 15years (super capacitor)