So this has been my project over the past few months on and off. Wiring in the Edison bulb was not that difficult, but fitting everything inside was. The real difficulty was figuring out how to wire and fit in an LED light which shines out of the front lens. I used two ‘AAA’ batteries wired in sequence to give me 3V for a single LED. I had to keep much of the mechanical innards in order to hold the aperture open.