[andyf117]

I replaced all but one of the interior lights in my C70 with eBay-sourced LEDs (non-Canbus) within the first week of getting it...
....four-and-a-half years later, those bulbs are all still working perfectly without causing any issues - and contrary to some claims that the main interior light 'fade' facility won't work with LEDs, it's always worked happily...

....and the one bulb I didn't replace? In the driver's footwell, as it was an absolute pig to try and get to, so I gave up trying!