does anybody know how to tell the difference between the different stages on these as i dont see any markings
escort cosworth dials the light for the speedo is out and on the reverse it says non serviceable do not remove the above lamp

 

as far as the the dash lights goes, do not touch that part as it is link to the inverter in the dash lights it looks the same as a bulb holder but isnt, there will be other bulbs you can replace im sure

 

know that now just wondered what it was when i seen it cheers