I've recently had a couple of LED bulbs I installed into my courtesy light start flickering thus causing me to temporarily fit standard bulbs again.
After a nice soft but bright light I felt that a better solution was needed.
As I have the unit with map lights and LED ambient lights fitted it takes T10 style bulbs and the following item was a perfect fit-
If you have only a single T10 bulb then this is the one for you-
Another option for a single bulb unit, (comes in T10 and festoon versions for all fittings)-
I strongly recommend the ones I fitted, better than normal T10 bulbs by far.
The seller is a top bloke as well, he sent the single T10 fitting one by accident and on alerting Him to this He sorted it immediately with no fuss and the replacement was here within 7 days.