Front lights of VW beetle

[Razzaq]

One of my friend has 1968 beetle.

The Problem is he is facing is that one of the headlight in much brighter then other. He has shown to many repairer but constantly faces the battle with it. After a day or so, lights go back to their favourite position...one brighter then others.......

please help

[beeberg]

swap lights and see if you feel the same, then only change the holder of em. it might clear the picture a bit.