This Aeotec Nano Switch Z-wave plus with power measurement is a true addition to the product portfolio. It's many times smaller than his predecessors (60%), so it is much easier to place. The module has also the possibility for firmware updates "over the air" (OTA), only thing you need for this is the Aeotec USB stick.
Switching can be done up to 15 Amps (+/- 3,400 watts), more than the FIBARO FGS-213 and the Qubino ZMNHAD1. Another option is to controll 24V, for example door bells or other low voltage equipment. But perhaps the most beautiful feature is that the module can be programmed through the parameters so that it can be switched on or off on setted times, independently from your controller!