Hello. I got a sucked idea about the Christmas days. And I want to convert my ignition key from my B4 to LED so that this “dead light” has an end. I once built it apart, measured bizzle and searched out the following LED and button cell in Conrad catalog button cell: http://www.conrad.de/goto.php?article=613037 LED: http://www.conrad.de/goto.php?article=185811 What do you say to the LED? Does it fit from the luminance or should I take a stronger one. I don’t think so, but I’m sure there’s someone among you who knows about it. It’s soldering and remodeling the key in itself, then it’s pipifax. Thank you in advance.