1.Solar panel:12v 4W monocrystalline silicon or polycrystalline silicon,life time more than 10 years 

2.Size :700*700*65MM

3.Storage battery:high temperature resistant Lithium battery, life time more than 3 years

4.LED:Superbright visibility>800meters

5.Controll mode:Light controlled with whole day flashed or night flashed  

6.Work time:it can work 72 hours after fullycharging

7.Work temperature:-30-+65 centigrade,continuous cloudy working hours>200h

8.Protection level:IP67