Thanks for your kind answer.
I have also notice the Sofirn HS42 : Sofirn HS42 review - triple channel 18650 headlamp | Wolfgirl Reviews
This test mentions also other competitors:
Skilhunt H200: Best-in-class headband. slightly lower power, only one (floody) white channel, significantly better red channel, more efficient
, smaller and lighter, magnetic charging instead of USB. Higher price point.
Acebeam H30: Throw channel, and choice of two secondary channels between high CRI white, red, green, or UV. Larger and heavier, 21700 battery, better performance and runtime, more efficient driver, significantly more expensive.
Wurkkos HD50: A budget alternative to the Acebeam H30 with a similar overall design. 21700 battery, flood/throw/red channels.
Wurkkos HD15: Flood/spot channels, similar headband, pocket clip included. Less nice LED on flood channel.
Wurkkos HD15R: An HD15 with the spot channel replaced with an SST20 Deep Red. Higher power red channel than the HS42.
Emisar DW4: The enthusiast option, with Anduril - in my opinion an overall better UI, but for some users simpler is better for a headlamp. Similar size, slightly heavier. Aux LEDs plus wide selection of LED options and choice between throwy or floody optic. Can be configured either as a linear+FET for a high turbo output and marginally higher sustained, a boost driver giving higher efficiency and better peak and sustained output with comparable runtime to the HS42, or dual channel with either white and red or flood and throw LEDs. Bad headband but has various third party accessories available allowing the use of alternative headbands, including Skilhunt’s. Interchangeable floody/throwy optics.
Zebralight H600: Smallest and lightest in class. Excellent efficiency, marginally lower peak but higher sustained output, single channel only, mediocre headband, expensive, difficult to obtain outside the USA. Available in 4000k or 5000k and floody or throwy variants.
Wuben L1: No headband (purely a work light, unless another headband can be made to fit), higher peak output, rotating head design means flood and throw channels can not be used in the same direction at the same time.
