Gallery or picture lighting is a really big plus for displaying astrophotos in my opinion. Yes good ones, hard wired into AC do cost a bit, but there are battery powered LED ones, like these:
https://www.lampsplus.com/products/b...ht__88693.html
Some even have remote control for about the same price.
But if you have a hallway or entry way, or long wall they can look really good grouped together, justifying the expense of getting a AC cord run into the ceiling or dropped through a stud wall. Even Bunnings offers basic track light systems that can work just fine.
https://www.bunnings.com.au/verve-3-...light_p4371488
There are battery powered picture lights, and little stalk mounted LED ones. I have a stalk mounted LED one that I repurposed from a Bunnings clip on desk light, it works ok.