1.Solar Panel:12V/ 3.5W monocrystalline silicon or polycrystalline silicon, lifte time: 15 years
2.Dimension:600*600MM
3.Storage Battery: high temperature resitence Li-polymer rechargeable battery, life time>3 years
4.LED: Ultra bright LED, visible distance > 800M
5.Controller: Light control. Options: whole day working or night working
6.Working Time:72 hours