... of lighting sources: above 100000h lifeSolar panel: mono/multi-crystal silicon high-efficiency cell with service life ≥25 yearsSolarController: mutually ... 5 yearsStorage battery: valve-controlled sealed service-free colloid, silicon and lead-acid cells with service life ≥5 yearsBattery ... Warranty:1. solar panel: poly-crystalline or mono-crystalline silicon, 20 years life, 10 years warranty.2. LED light ...