Upgrade from Wurkkos HD15R

[mcjtom]

@blaffo

What do you guys think about the Wurkkos HD50 or Sofirn HS21?

Here are some comments on HS21 usability plus links to other reviews.

【New Sofirn HS21 announcement】The first Sofirn headlamp with gesture control function

I have used the HS21 for a few days now. There are already better reviews of this light than I can provide by @Weerapat_K here, bicycling here, and running with it here. @koef3 has contributed the first runtime test on Turbo for it here and contributed all kinds of useful comments earlier in this thread. @macomako posted several observations here. @zeroair published a review here and so did @darrenyeo here. I’d like to add a few comments on the light, some not new, but never summarised. In…