New Hanklight just dropped. His first dual fuel light, meaning it runs on 14500 LiIons or NiMH AA batteries. It's also his first light to use the AVR DD series driver, which is better apparently. I don't completely understand the electronics behind it but it looks good.
https://intl-outdoor.com/led-flashlights/emisar-d3aa-14500-edc-led-flashlight.html