The Grape Solar 600-Watt Off-Grid Solar Panel Kit is ideal for a variety of applications, including RVs, boats, 12-Volt battery charging, small pumps, charging small electronic devices and operating LED lights. Made with high efficiency solar cells with high module conversion efficiency and long-term output reliability, this solar kit is easy to install and virtually maintenance-free. An anodized aluminum frame and a sealed junction box makes the panel weatherproof for outdoor use. Panels include bypass diodes. This system will provide approximately 1,800-Watt hours or 150 Amp hours of charge per average day. The kit includes: 3 x GS-STAR-200W solar panels, a 40 Amp Grape Solar Zenith MPPT charge controller, cables and manual. 12-Volt deep cycle battery not included.