should of bought the LED versions so that you only probably need to replace once in life of car.
The red bulbs which are used in the Focus MK2.5 tail lights are relatively rare which partly explains the ridiculous price. As far as I know this exact type of light bulb is only used in a few vehicles (Focus MK2.5 Fiesta MK6.5 ST and some Saab models. In Holland most automotive part suppliers do not even sell them.
Because the rareness of this type of light bulb it is practically not produced as a LED version. I found a Chinese company which produced them on demand but in my opinion they are not bright enough. As an alternative Osram produces this type of light bulb as a Diadem version which has a blue/silver appearance but shines red. This Osram Diadem light bulb is even rarer and more expensive than the Original Ford light bulbs. I paid about €40,- for a pair of Osram Diadem light bulbs for my MK2.5 tail lights.
Agree'd, I bought mine off ebay and they are sweet as!
Take a look at my build thread on my signature.
I like the thought of those silver coated stop/tail bulbs, not too keen on the price though!
When I upgraded to 2.5 rear lights I was shocked to fin also that these bulbs were a fiver a pop in my local motor factors, he mentioned that Saab use them as well. And even then the red bulb sticks out like a sore thumb in the clear light units in my eyes!
Had thought about LED replacements but was skeptical about light output and the dual filament functionality, especially in daytime. I have fitted an LED strip to the upper part of my tail lights though for the dual-lit look, but get a contrast then at night between the deep red of the LED and the orangey-red of the halogen!
Silvatec don't do anything similar do they, like their indicator bulbs which just have a smoked silver coating but still flash amber?