I think it is no doubt that: they copied us.
Jaxman E3 issued in Feb,2015. Only because of we are not famous brand, and we insisting quality not quantity, so we are not known as much as the cheaper flashlights brand.
One word, if they provide a selling record early than Mar 2015,I will apologize here.
Dont forget, Manker had copy us Z1 flashlight and titled it as a COMETA flashlights , and had been selling in BLF. It is just happend years ago….
https://budgetlightforum.com/t/-/39949