【Monocrystalline Solar Panel Cells】 A-grade monocrystalline solar panel cells have an efficiency of up to 21.5%. These ultra-PET films have a light penetration rate of up to 95%, which can further increase solar conversion efficiency.【Ultimate Durability】 The 220W solar panel's anodized aluminum alloy frame with corner protectors ensures maximum reliability for harsh use. The solar panel kit is equipped with tempered glass that is impact, shatter, and water resistant, making it the most durable solar panel on the market..【Extraordinary Versatility】 The 220W solar panel kit uses terminated premium cables to ensure easy connection to AGM, lead acid, gel, and calcium cells. The solar panel has overcharge cut-off technology, overload, and short circuit protection to ensure its ultra-reliable performance.The MPPT controller is only suitable for LiFePO4 batteries and lead-acid batteries: calcium,AGM & GEL..【Ready To Install】 This solar panel kit includes two 110W monocrystalline solar panels with a 20A MPPT solar charge controller, 1 pair of 10ft 12AWG MC4 solar cables, 1 pair of 6ft 12AWG battery cables, and 1 pair of solar Y-branch connectors. Pre-drilled holes in the rear frame of the solar panel allow for quick and easy installation.【Quality customer service】This heavy-duty solar panel is lightweight in construction and extremely suitable for camping and other activities. If you have any questions about the solar panel, please feel free to contact our customer service staff and we will get back to you within 24 hours. It is our aim to give our customers a good shopping experience and excellent service.