Lionel Genset ditch lights and rear headlights hole diameter

Most cases you may have to add/or enlarge the holes with a drill bit/held in a pin vice.  There are smaller LED's.   Pictured are 3mm Bi-drectional/(2) colors. 

This set of Weaver Pennsy E8's, LED's were added.  

LED installation/color are subject to criticism.  Color and location may not be proto-typical. 

FWIW, you can use 2mm post LED's and get bright lights if you want them in a smaller hole size.

Not very helpful guys. I wanted the diameters for those lenses so I can get the engine modified the day before I go to my local club to run it on Sunday.

Not sure this is what you want either, but on this genset(6-28355), the lights you are asking about are very close to 3mm.  Difficult to measure, hold ruler and photograph too!  

TedW posted:

Not sure this is what you want either, but on this genset(6-28355), the lights you are asking about are very close to 3mm.  Difficult to measure, hold ruler and photograph too!  

Good enough for me, I believe most of the tooling between the Non-Vision Line and Vision Line Gensets are identical. I'm getting a Non-Vision variant, so what you provided is perfect.

Also, can someone post a picture of how the lighting performs in a dark room? I believe the front headlight will be extremely powerful, from it being illuminated by SMD LEDs. I'm mainly interested in how well the rear headlight and rear ditch lights illuminate the ground and tracks.

I found out that the holes would not be able to take 3mm LED lights for the ditch lights. They become a lot narrower when they go into the frame, so it looks like I will have to buy clear plastic lenses and glue SMD LEDs onto them to get the effect I was going after.

Thanks for the help everyone.

Keep us posted on how this works out for you. Some photos would be great.