Terralux Lightstar 80 switch not working what size is it?

I have the above light that I gifted to a buddy. He said it stopped working. Gave it back to me to check out. Turns out the switch is simply not working. I contacted Terralux but they have ignored me.

Does anyone know what size switch it is and where to get one? I just need the screw in switch itself not the whole tail cap assembly.

Thanks.

Bump

The Lightstar 80 has a limited lifetime warranty doesn’t it?

Yep, I contacted Terralux with no response.

Both of mine quit and I could not get the switch out and TerraLux would not ever respond to my emails. Finally just tossed them, will never buy another TerraLux product again!