Budget 21700 headlamp with 3 LEDs and quite the punch (3000lm and 240m throw). Two switches, one for changing the LED used and the other to turn the light on/off. Holding either switch changes brightness modes.
Sustains ~500lm which is on par with most inexpensive headlamps, nothing to write home about. Turbo steps down after 1-3 minutes (depending on what LED you use). We get a 3 LEDs that give us a wide, focused beam and a red light.
It uses a rubber headband, with the headlamp being held using 2 rubber loops. You can't take off the top strap without ripping/modifying the headband.
The Sofirn HS21 will most likely remain the more popular choice (changing between LEDs using the rotary ring is just a better UI), but the HD50 will give you a longer runtime on a single cell.
Updated my website's recommended headlamp roster:
https://grzybekreviews.pl/s/headlamps/
by grzybek337
