The ballasts are never "pre programmed", you have to do it once installed on the car with VIDA. If you don't, it will set lights at lowest point and won't auto level them, and you'll have 2 fault codes stored. If you swap a secondhand ballast it will still need calibrating to your car, but shouldn't set itself to lowest level.
Running the calibration in Vida is a 5 minute job.
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