... , various protectionsBattery12V/2*180AH, solar special use valve-regulated fully sealed lead-acid battery, deepcycle, free maintenance type; 5-6 years ... lifespan.Battery BoxPVC material, underground-buried type, waterproof and heat-dissipative ... LED lamp, garden light, solar garden light, solar panel, battery.Q: How many years guarantee your products?A: The warranty ...