Does anyone know where I can find these 1x4 plates without bottom tubes?

So I've been looking everywhere for these plates the bottom tubes, I want to put light strips in them. I started making my own light kits and all I can find are ones with pre-made strips that cost two to three dollars a part. Any help would be greatly appreciated. ❤️ submitted by /u/Darkmatter313xx [link] [comments]