Checking ballast resistors is very easy ... unfortunatly the ones we used didnt have any idetification still written on them so we couldnt get any specs .
Ballast No1 measured resistance was 1.4 Ohms.
Ballast No2 measured resistance was 1.5 Ohms .
most of the ballast resistors have a similar resistance so if significantly higher than 1.5 Ohms or signifiacntly less can tell us there is an issue with this resistor but ofcourse if we had the spec it would have been much easier to do this ...
Also none of these ballast resistors are serviceable.
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