If you have the need for a power source which caters for a number of different output voltages, maybe this will interest you.
I spotted a couple of different models of this type device on the Harley Benton music equipment website.
https://harleybenton.com/product/powerplant-iso-12-pro/
It seems to be targeted at powering typical guitar effects pedals, eliminating many plug packs cluttering up the floor ; however it may have astronomy uses. It is not a high amp output device.
Harley Benton is located in Germany, but do provide AUD pricing and GST remit where required. Shipping should be considered.