1.Solar module power: 2-4Wp 2.battery:Lead-acid(6V)/Ni-cd(3.6V) 3.Light source: LED lamp 4.Control system: Solar light special micro computer intelligent controller 5.Working temper: -30 to 70 degrees 6.Lighting time: 10-12 hours a day 7.Overcast and rainy illumination:2-5 days