At LUX Solar all of our products have been engineered with simplicity, efficiency, affordability and longevity in mind. All of our products are rated to the highest water proofing standards practicable. Our Flexible Solar panels use high efficiency mono-crystalline sunpower cells with transaction efficiency of greater than 22 percent. When using one of our pre-designed kits the MPPT charge controller will operate in it's high efficiency zone of up to 98 percent. If you would like to know the power requirements for your marine solar system or your rv solar system please contact us, use our LUX Solar calculator or read through our knowledge articles. At LUX Solar our engineers are constantly working on new ideas so please keep an eye out for our up and coming products.