Found these on Ebay:
Have the first one linked but it’s branded Roche, have also seen it branded Fandyfire and a couple of others. I believe the third light has been branded Convoy and a couple of others, CNQG has it in a host I think, not real sure though.
That $27 SRK is not a bad price…quality wise…who knows (my bet is on a floating star w/o heatsink)
Roche X3 has electric side switch. That SecurityIng has different tail cap and tail clicky.