This combo set includes a 200 W polycrystalline 24 V solar panel and a 24 V-20 Amp microcontroller-based solar charge controller. The Solar Panel, made of high-efficiency poly cells with a tedlar backsheet and an aluminum frame, can be used to recharge a dual battery system of 12 V or 24 V batteries, while the Solar Charge Controller, which has multiple protections, acts as a bridge between the Solar Panel and the 24 V Battery to deliver the best results. The controller has a smart tracking algorithm that maximizes the energy harvest from the PV and also provides load control to prevent over discharge of the battery. The Solar Charge Controller provides several levels of protection. Solar Charger Controller prevents reverse current flow from the battery to the solar array, provides load short circuit protection, battery/panel reverse protection via a DC fuse, and overload protection as well. Most ideal for 24 V batteries with capacities up to 200 ah, which are often used in inverter systems, off-grid systems, villages, security rooms, computer rooms, farm buildings, and by street vendors.