Litronic Headlight Issue, One Side out

[binkoba]

2003 Boxster S
I had passenger side Headlight out.
I bought new pair of ZEON lights
Installed both
Passenger side still out
Swapped sides, new Zeons
Passenger side still out
Reinstalled both old Zeons
Passenger side still out
Swapped Sides
Passenger side still out

Switched Lights switched off and on many times
Passenger side still out

Banged on Light switch
Passenger side still out


Any Ideas what next?

Thanks for you time.