Car: 9th Gen 1.4 Petrol SE + Navi
Join Date: 13th March 2017
Location: Essex, UK
Thanked 293 Times in 263 Posts
Interior lights are all T10 / W5W bulbs - That's
Left map light
Right map light
Number plate light L
Number plate light R
So 6 T10 bulbs in total.
You can fit any LED in the dome, boot and numberplate lights, however, the squareish LEDs don't fit in the map lights - Too tall to allow the button pressing.
I'd strongly reccomend OSRAM T10 bulbs; They are expensive, but they are the only LEDs I've used that have lasted for more than a few months without becoming a flickery mess:- That said, I currently have a cheap blue LED in the dome light for style points, and short T10 LEDs in the map lights.
I haven't changed the mirror lights; They're already bright enough, and the warm glow makes it easier to do my makeup whilst driving. (Har har)