A basic shelf bracket for Ikea Ivar shelving that provides a mounting point for LED lighting strips to illuminate under the shelf. The bracket positions the light at a 60 degree angle. Print two of them and use small zip ties to secure the LED light strip through the hole in the brackets.
You can purchase the 21 LED light strips from Amazon. They're quite nice, small and very bright and even lighting.
Ikea Ivar shelves have gotten 1mm smaller over the years it seems. The file labeled "new" fits shelving I purchased a year ago. The file labeled "old" fits shelving purchased over 10 years ago.
Monoprice Maker Select Mini
The bracket is 2mm thick so this prints nicely with a 0.4mm nozzle.