This is a 3D-printed Glow Disc Charger designed for disc golf enthusiasts. Built around a 50cm UV LED strip (costing just $1.60, Ali express) that draws 0.5A at 5V, the UV - charger runs off a USB battery and is intended to stay active in your bag for an entire round. Its compact, efficient design ensures your discs are always glowing. Depending on the type of discs you are using you might have to adjust the amount. For my Kastaplast bag, I will have 3-4 discs in between each charger.
A 5,000mAh (5Ah) USB battery will comfortably power three chargers for a 2.5-hour round, with some reserve capacity.
See picture for LED Strip P/N.
The author marked this model as their own original creation.