These end caps make it easy to attach LED strips at each end of 1" PEX arches using mini-bungee cords. You can rotate the end cap to clock the pixel strip so
...さらに表示 it's facing upwards along the length of the arch if needed.
The slotted hole accommodates pigtails and you can provide strain relief for the wires by putting a zip tie around the cable located just inside of the end cap.