Nitecore MT21a

1 x Nitecore MT21a LED torch for 2 x AA cells.
Has 3 normal brightness settings along with a turbo mode.
Low: 15lm 50hr
Med: 60lm 12hr
High: 130lm 5hr
Turbo: 260lm 2h

There is also a strobe and S.O.S function.
Turbo brightness is only maintained for about 5 minutes before it throttles back to a level which is in between turbo and high. The head does get quite warm on turbo!
It has a Cree XP-E2 LED iirc and colour temp seems about 5000k.
Nice and bright handy little torch tbh, had it a few years now.
The 3 brightness modes and other functions are selected with the tailcap switch and turbo mode is activated by twisting the head unit which overrides any current setting.