Not sure which forum to ask this under so pardon if I made a mistake. I'm in the process of figuring out how I want to light my buildings and have decided on LED light strips, 12v, cutting them down to 3 LED strips. I also am looking at a few white individual diodes but am wondering what people on here use most of 5mm or 3mm? I'm assuming 12v there also. Does anyone use anything smaller for HO? And if you use 5mm and 3mm, what applications do you use them for? Last question, does anyone or has anyone used copper foil tape? I saw this used in a video recently and it seemed like a handy thing to have available.