I don’t think that it is fair concerning Mateminco/Astrolux MF series except for the MF04 that is strongly inspired by the BLF GT but they followed their own route concerning the body’s design, only the size of the reflector is comparable.
Its confusing, for the MF01, the v2 us named MF01S, for the MF04S It is only another LED option of the MF04.
But perhaps the MF05 is only another LED option of the MF04 too.
An this was the former thread of the MF03 with active cooling.