Halcyon Focus Body O-Ring

[Banana Joe]

Is anyone able to confirm the size of the o-ring that goes between the forward section (containing the LED and main PCB) and the 'middle' section that has the cavity to accept the power pins for a Halcyon Focus 1 Light head? I have the torch in bits to get the switch working again, but the o-ring is very stiff, brittle and far off being round so I don't trust a caliper measurement.

Thanks

 

[NothingClever]

Afraid I'm not much direct help but I'd call Halcyon.

I believe the name of the employee who does most of the Halcyon light assembly, retrofits and repairs is named Greg.