https://www.aliexpress.com/store/product/ON-THE-ROAD-M900-Mini-flashlight-rechargeable-compact-CREE-LED-flashlight-for-camping-Professional-waterproof-torch/3081046_32847475895.html?spm=a2g1y.12024536.productList_3357410.pic_1
This light (OTR M900) seems to be configurable into 3 options, one of each is a single mode (100). However, it will probably produce more light and more heat than a Convoy with 4*7135 chips w/ biscotti configured on mode 12 (1 mode - 100).
The small OTR M3 (2018 version), side switch, 16340 battery, USB-C built-in charging, can also be configured for just 1 mode operation (+ Turbo, Strobe, SOS with double clicks).