My " Fred's " bi-xenon headlights both stopped working- help

[rfuerst911sc]

I was one of the lucky ones that purchased a pair of Fred's infamous bi-xenon headlights . Forum member Particlewave performed the conversion and they have worked great for years . But recently both will not light . I don't want to jump to any conclusions so what should I check to diagnose the problem ?

Car is an 02 S with 140,000 miles on the chassis. All other headlight functions work . Any help appreciated . Thanks

[78F350]

If both lights failed at the same time, I suspect the infamous Porsche headlight switch. Do you have another headlight you can try to see if it works?

[rfuerst911sc]

I do have spare headlights so I will try that . I was suspecting the headlights switch .

[rfuerst911sc]

To close this out , I replaced the headlight switch and voila the lights now work . If it was the original switch it made it 21 years .