Instrument panel lights

[A10ECGent]

I was checking my instrument panel lights the other day and noticed that my dimmer works great on the instrument side but, the light over the vacuum gauge on the right side of the panel and the Hobbs meter light work opposite of the left side of the panel. As the I dim the left side, The right side gets brighter and vice versa. The dimming and brightening are proportional both directions just opposite. Has anyone run into this before.

Thanks
Greg

 

[Tweety]

 

[A10ECGent]

 

[martin10]

 

[FLYZONE]

 

[Tweety]

 

[av8ator1]