HIGH CONVERSION EFFICIENCY - With high efficiency monocrystalline solar cell, you will get greater power efficiency even though the solar panel is smaller than a traditional model. EASY TO SET UP AND USE - 4 mounting holes are available to attach fasteners. Waterproof design, tough, sealed aluminium frame is perfect for all weather conditions. ROBUST AND WATERPROOF - Corrosion resistant aluminum frame for extended outdoor use, allowing the panels to last for decades. Withstand high wind (2400Pa) and snow loads (5400Pa). WIDE APPLICABILITY - Ideal for RV, camping, off-grid solar panel system, caravan, boat, green house solar panel system, solar pump watering system etc. QUALITY SERVICE - If you have any comments or suggestions, please feel free to contact us and we will reply to you within 24 hours. We will do our best to provide you with a satisfactory solution and ensure that you will not suffer any losses.