you would be better taking one to an electrical shop, they will be able to tell you what type they are, and probable sell you some, or search on ebay for some cheap ones.
------------- As I've told my psychiatrist, you can't have too many tents.
Try either Ultraleds or Bedazzled. Bedazzled do a lot of the inland waterways shows so they are very familiar with battery operated 12v set-ups.
------------- Love a lot. Trust a few. But ALWAYS paddle your own canoe!!
Minds are like parachutes:- They only function when they are open!!!
Those who talk don't know.
Those who know don't talk.
Hope this helps but if you have the same lights as me, (the ones with the swivel eyeball type with small single bulbs - bayonet fitting, level pins on each side and a single ended connector on the bottom of the bulb)
These are known as BA15s and if you type in "BA15s smd led" into eBay there are loads. I have the 18 led type which are a little less bright than the old filament bulbs but really light on battery.
There is also the option of SMD strip lights for the kitchen. They come on a strip that has sticky backing and can be connected to any existing 12v light fitting ( you have to remove the fitting and connect the wires )
I've added one strip and it's really impressive.
The easiest way would be to take out one of your bulbs and compare on eBay by typing in "smd led bulb" and scroll the pics
I replaced all my bulbs in my Bailey using SMD's from Bedazzled, Richard (at Bedazzled) was very helpful indeed. I recall changing all my BA15 swivel spots with a BA15s adapter and a G4v-6l smd which in all cost about £7.50 a unit. I also changed all the small glass 2 pin bulbs in the dome lights and bathroom lights with G4H-6L smd's.
I did try ebay but the quality is not as good and the bedazzled SMD' are all protected with voltage spike suppressors.
------------- Nigel
March 2012 - Dove Meadows
6th July Moving to Hayle