Many kinds of interface devices are available to meet the demands of any scale, any budget and expansion needs.
Digital switches are suited for small scale building applications for up to 30 circuits.
Touch panels are suited for medium scale building applications for up to 300 circuits.
Host PCs are suited for large scale building applications when more than 300 circuits are needed.
Any computer with a web browser or an Android based mobile device can also control the lighting by mirroring the screen on the touch panel display.