ArtNet

Art-Net uses ethernet for transmitting lighting data, making it easy to transfer of large amounts of DMX512 data over a wide area using standard networking technology. It is an implementation of DMX512-A protocol over UDP. This can be done through a LANcable or wireless to a receiver/converter.  

To receive ArtNet data & convert it to DMX you need a hardware converter. *
For HKU students the Blackbox JK is equipped with ArtNet, not for loan.

more info: https://art-net.org.uk/

*Do you have some Arduino experience? Build your own! 
https://www.instructables.com/Arduino-Artnet-Node/