Durable: The anodized aluminum frames, tempered glass, and sealed junction box make the solar panel corrosion-resistant and weatherproof for superior outdoor performance..Higher Efficiency: WEIZE NEW DESIGN solar panel is constructed with high-performance SHINGLED Monocrystalline solar cells that offer higher efficiency up to 10% than normal version in bright weather condition, it provides a long service life and is virtually maintenance free..Versatile: The industrial-standard solar panel features 39.96" x 20.27" x 1.18" size, 2.6ft cable with connectors, generates 5.3 amp power, charges 12-volt battery, ideal for RV's, cabins, sheds, remote locations, and other small power generation needs..Installation: Ready for installation. Pre-drilled holes compatible with common ground mounts, Z-brackets, side pole mounts, and tilt mounts. ( Mounting hardware is not included. ).Warranty: The monocrystalline solar panel aims for quality followed up with quality customer service directly provided by the manufacturer. A satisfied solution will be given for ANY of your problems. Our support team is on standby for YOU.