The Sunforce 85-Watt Crystalline Solar Panel has an aluminum frame for extended outdoor use. The bypass diode minimizes the power drop caused by shade. This unit is ideal for RVs, homes, boats, back-up and remote power use, 12 Volt battery charging, and solar power stations, pumps, and lighting equipment. The solar panel has high-efficiency crystalline solar cells, and is easy to install and completely maintenance-free. The solar panel is completely weatherproof, and comes with a 25-year limited warranty. Connect multiple panels for more power. The complete kit includes wiring, brackets, screws, and a voltage tester.