A few years ago I started to notice that several of the outdoors manufacturers were making identical kit (cookware and the like) and soon enough I realised that they were just putting their names onto Chinese kit (you often see exactly the same kit on that Alibaba site where they put whatever name you want on it and they supply thousands of the things).
From that point on I realised that it didn't make much difference if it said Primus or Optimus on it it was just as likely made in China. That.s for the new cookware anyway.
Chinese LED lighting is great, affordable and in my experience just works. I couldn't care less that someone paid a couple of hundred notes for a pushbike light, mine cost twenty quid and the damn thing is as good or better than the lights I've had on most of my motorbikes.