I think they should release a series of higher voltage boards simply because i already have to figure out how to use wireless relay boards at 12 V so having a stand alone microcontroller controlling these will make things alot neater than having to have other power supplies for external 5 V microcontrollers used to control the state of digital input for each member in an array of MOSFET gates whose drain is connected to an external voltage supply for each unit and the source to GND.
as long as its much more affordable than buying the mosfets separately anyway.
also in those forum ranking things, Edison should be lower like after 10 posts