How about a lamp which light size is determined by no. of virtual-L's given by signals?
i. e. giving 5 x virtual letter L results in light size = 5,
i. e. giving 50 x virtual letter L results in light size = 50,
and so on..

That’s a pretty good idea
If I ever get back into modding I’ll add this lol

So this mod is not maintained anymore?

meh i'm just not really into factorio anymore and i absolutely despise lua so not really
it's open source if you wanna give a shot at hacking it in yourself