I bought on ebay a set of 10 x 2 orders and replaced everything even the outside light. I had one that didn't work out of 20. I will only say they are a bit difficult to put in the socket but after the first two you get the hang of it. These are not super strong you have to be gentle.
Ebay LED T10 Wedge 24 smd
I will say that I ordered separately one that had a few LED's all the way around a round cylinder and those are very dim in comparison, and might be used for mood lighting or a night light.
This is one of my favorite mods on my older TT, really updates the look inside