Just a quirky little lamp I like. Remember those old glass blocks that were everywhere in the 1980s? Well a Lithuanian design studio called Kismas made a lamp out of them by sticking an dimmable LED strip under them.
While you can change the color, it's not how you might expect. It comes with a few plastic filters you place under a diffuser on the LED strip. The downside is that some of the colors, such as purple and green, significantly reduce the output of the light.