Dry camp without having to give up the luxury of electricity.2 High wattage Monocrystalline solar panels up to 165 Watts - Maximum 9.43 Amps. Great for use with RVs, boats, backup power and all 12 volt applications. Includes built-in blocking diode to prevent reverse flow of electricity. Equipped with heavy duty aluminum frames for strong weather resistance and permanent mounting. Monocrystalline is the most efficient and dependable solar technology on the market today. Maximum Power: up to 330 Watts (165 watts per panel). Maximum Current: up to 18.86 Amps (9.43 amps per panel)Requires use with a Charge Controller Nature Power 28 AMP (not included).