I’ve been looking for a multi cell, multi mode(no strobe) driver for 3 years and have only found the 5-15V 3- mode(19 mm), the Sharkbuck with remora, the Taskled bflex, and Taskled Lflex. That search is what led me from CPF to here and prompted this thread. It’s long and tedious but the results were positive in the end. I haven’t put one in a light yet because I’m reluctant to do so without proper cell monitoring.