This one has a low mode! 72 hrs claimed runtime on low, 7 hrs on high (192 lumens/337 M beam distance).
https://www.maglite.com/shop/flashl...agliter-ml25lttm-2-cell-c-led-flashlight.html
https://www.maglite.com/shop/flashl...agliter-ml25lttm-2-cell-c-led-flashlight.html