... 30 years. Below is our warrenty. The LED lamp is 100000 hours SOLAR PANEL is 25 years ... or polycrystalline, conversion efficiency: 15%Light Source40W, induction lamp, 2500 lumens, 0.3 ~ 1.9 foot ... cycle battery, 80Ah, 100Ah, 150Ah, 200AhBattery PositionUnder ground, at the foot of the pole, on ... no running or maintenance costBetter light source - LED lamps feature cool white light without flickering and ...