It adjusts the angle of the headlight, needed for MOT fine tuning. Takes ages to move it though, requires shed load more turns than a manual one to do anything.
Also as I found out for Hiho's MOT, the balls can pop out of the sockets so they don't do anything. Easy way to check is to take the bulb out and look through the hole.
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2001 Bugeye - Project Black/Red, 1997 JDM Type R, 1995 V1 WRX, Defender Tithonus MOD Styleeee!
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