Blimey I bet they're bright!
So far so good with the slightly more expensive ones I went for on ebay. Got them in the sidelights and numberplate lights, crisp white light like the ad said and got no flickering or missing LEDs. Much happier with them than the bluer ones I had before.
These were the ones I got:
http://www.ebay.co.uk/itm/251231914595
Tried to get a photo but the light just blurs and it doesn't come out right.
Eventually i'll probably change the interior bulbs to the same white LED's - But was just wondering, if I do: Will the fade/dimmer fuction still work with the interior bulbs? I was thinking because LED's take so little power the little resistors or whatever they are that control the dimmer probably won't work and the LED's will either be on or off. Not really an issue just a thought