Summary

Aluminum track cap for permanent Christmas lights from Your Pixel Store (https://yourpixelstore.com). Fits 1" x 2" (25mm x 49mm) track. Recommend printing in PETG for UV stability and longer life. Versions have a 6mm hole for wiring and/or securing tab for 1/8" panhead screws. It fits tight and might not need a screw. If you don't want to use a screw then you can secure it with a little dab of silicone calk.