The CapModule Smart is the little brother of the CapModule Pro. It is also a perfect partner for your photovoltaic system – and a little more cost-effective. The advantages are basically the same: Even if the sun provides a lot of electricity on a sunny day, the CapModule Smart does not collapse under the load. And once the power fails, the CapModule Smart bridges that time. In addition, you do not have to worry about an installation in the basement: igniting itself or even exploding is physically impossible.