In this March, 2019 article of Vintage Guitar Magazine, Lee states he owns a Rickenbacker 4005 "Lightshow" Bass, calling it a "Holy Grail Instrument".

[Vintage Guitar]: "One of rare gems of your collection is a Rickenbacker 4005L Lightshow. How does it compare to a 4001?"

[Geddy Lee]: "It’s a bigger, clunkier 4001. And let’s face it, it’s a showpiece. It sounds like a 4005 – kind of bottomy. You can get top-end out of them, but you got to work at it. And yeah, it has that semi-acoustic vibe even though it’s chock full of all the wiring and the lighting apparatus. They play more like a 4005WB, with the squared-off body, but even thicker."

[V.G.]: "It’s such a curiosity…"

[G.L.]: "It is. And I don’t know how the guy who played mine all those years got one, but I assume he played in a country band; in the book, I have a picture of him playing in a juke joint. The book also has a nice conversation with John Minutaglio, a friend and big collector of Rickenbacker stuff. Wherever my knowledge was lacking, I tried to find someone to add insight and he was a terrific resource on Rickenbacker."

[V.G.]: "How long did you look for it?"

[G.L.]: "I never thought I’d find one, to be honest. As a collector, there’s certain holy-grail instruments. So, when it came available, I jumped. Collections must be fed. That’s the way I think. If you’re not feeding a collection, it stagnates, and if you’re a completist like I am, you want those missing pieces. That was a big one, and I’m thrilled to have it.

In this list of Entwistle's equipment, we can see Entwistle with a Rickenbacker 4005L "Lightshow" Bass.

This Bass was also used for The Who's October 3rd 1973 appearance on “Top of the Pops”.

https://www.youtube.com/watch?v=cGjjlbxBALE