This is the first prototype of my dart ring light. The individual ring segments can be easily connected and glued together. The mounts are secured with two threaded inserts and two M3 screws each. Self-tapping screws should also work just fine. The LED strip is a standard 3m white light strip. The entire ring light is simply clamped between the dartboard and the foam ring, and it holds perfectly. If there’s no foam ring available, magnets can be embedded into the mount for added stability.