Replacement bulb for electronic air conditioning controls

[ahew]

Hi all,

Does anybody know what the part number is, or where I can get the replacement bulbs for the air conditioning controls? I had one bulb that was out and I took apart the controls to check out the bulbs and their this weird screw on type that I haven't seen before. I took out the side that wasn't working and now... all the lights are gone except for the screen. Doh! They must be linked somehow. Anyway, there's 4 of them (2xbig ones in the middle and 2xsmall on the sides) and I'm after the part number for the small one.

I've also looked in the DIY section and I saw the entry for replacing the bulb itself, but it looks a little fiddly and I'd rather spend a couple of extra bucks to get the stock part.

Thanks for any help.