Just picked up an Acebeam H16. It's a 14500/AA (duel fuel) right angle/headlamp.

Pretty happy with it. Got the black anodized 519A Hi CRI 5000K version, max 650 lumen version.
No mechanical lockout, which is a shame, instead relies on a double click to turn on.

Simple (to me atleast) UI.

When off,
1) a double click to turn on. Press and hold to cycle through the 3 levels. (low/mid/high).
2) press & hold the button for .5s and it comes on in ultra low (5 lumens).
3) triple click for SOS

Single click to turn off.

Comes with a 14500, that you can plug a USB-C cable (a USB-A to USB-C cable is included) directly into to charge.

$34.99 on Amazon US. Currently has 20% off coupon.