Have you seen this remote switch for bike lights selling somewhere?

[Sirius9]

Quote taken from here.

@TSellers

I requested today remote switch for bike lights, many bike lights use identical remote switch and almost all that don’t have remote, can be easily modified to work with one but noone sells only this remote switch!

I looked at that switch and could not tell, does it detach from that light or is it hard wired to the LED?

I think it’s hard wired, here are some lights that use this switch: TrustFire TR-D002, another TrustFire, TrustFire TR-D009, TrustFire TR-D010.

In any case, all I need is just the switch in its case (with O-ring) and about 30-40 cm of cable, I will be very satisfied if its a 2-wire cable or thrilled if its a 6-wire cable