... cables, solar garden lights can be set within a rechargeable battery, eliminating the need for trenching, backfilling and the purchase ... monocrystalline silicon or polycrystalline silicon (silicon imports, domestic package);2,Battery: 17AH × 3, maintenance-free lead-acid batteries;3, Power ... temperature: -20 o C ~ 55o C. Warranty:Solar battery life of 15 yearsBattery life 2 yearsLED life 100,000 ...