This is my mini project while working on a larger project.
I needed some where to take well lit photos of my main project. It's a DIY light box that I found on YouTube and built it as per the video but did't have any lights other than some spare LED downlights I had already. They have warm,cool and daylight settings.
I used 19x42mm pine to make the light box and had some spare so I made these brackets up to hold the lights in the same spot and its all together if I need to move it. Its only screwed in a couple of places and the rest is held in by gravity. Designed with no suports needed. All printed in PLA as these LEDs don't get hot at all.
Check out my photos I took of my main project and see the results https://www.myminifactory.com/object/3d-print-open-source-hardware-logo-led-lamp-100388
If it doesn't work for you I hope at least it might give you some ideas to improve on it