Ive got a speedo here stripped down which is a spare, my brother took one of the led's off & measured it.
He then found the led's on rs components.
They arnt normel bulbs & they dont have filters on them, the led's look clear when you look at them but they do light up green.
You can buy that kit off ebay, but you dont get enough led's to change the whole led's on the dials.
Iam soon to order some blue ones from rs components & my brother is going to fit them for me, but be warned, it will be hard as fook to fit.
Go to
Rs Components & type in
454-4469 for the blue led's