Great for use with RVs, boats, backup power and all 12 volt applications. High efficiency Monocrystalline solar panel up to 30 Watts Maximum 1.6 Amps. Freedom from noisy expensive gas generators, opt for silent and environmentally friendly Solar power that can help you to become energy independent. Dry camp without having to give up the luxury of electricity. Great for starter kit - Simple to install equipped with easy to use plug and play connectors. Modular design ideal for expandable solar systems. Includes built-in blocking diode to prevent reverse flow of electricity. Solar panels are 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. Requires use with Nature Power 8 Amp Charge Controller or Nature Power 28 Amp Charge Controller. Optional: 40 Tilting Mounting System.