Hello all. I am modifying a locomotive and one of the modifications is relocating the headlight. I need to move it from the smokebox front to the pilot deck. I have a housing for a light that has a hole in it about 3 mm in diameter; are LEDs that size made, with wire leads so I can solder them to the original press in circuit board, that would work for my application here? I know a lot about electronics and wiring, just not so much about LEDs for teeny N scale trains. Thanks much!