I have a Simplex 4050-80 light plate (120V AC version) that I will be using for a special project, and need to know the size/style of bulb that goes into the lamp socket. I’m planning on turning the light plate into a decorative piece (along with the horn and backbox) by adding a lamp cord to the light and using it as a decorative lamp to go on display. I’d like to replace the original, incandescent bulb with an LED bulb of the same style so that 1: the plastic light cover won’t warp from heat generated by the incandescent bulb if it is lit for prolonged periods of time and 2: I don’t want to burn out the original 40+ year old bulb. The socket is bayonet style, and I think the bulb is an (S6S?) style bulb, but I’m not too sure. Just don’t want to order the wrong bulb. Any help is appreciated. Thanks again.