Indeed. Even while it is measuring every second instead of ~8s it consumes a lot less power in total.
PS: Someone should sponsor you an oscilloscope. 
2 Thanks
Did Wurkkos ever address the high parasitic drain on the TS21? If so, is there a way to know what rev is a given TS21 flashlight?
Wurkkos has semi-recently redesigned the drriver for the TS21 to use a T1616 MCU instead of the old T85. I’m guessing they probably also fixed that issue with the new driverr.
Can’t speak for detailed revision codes but if you take the tube off and look at the driver, the new version will have 3 flashing pads visible.
2 Thanks
I bought one a few weeks ago. Draws 3ma on high. That works out to 70 days. And draw will go down as cell depletes so probably 50% longer than that. I just leave aux on high. I find low too dim
Mine was purchased on 31 December 2023 and with the LED on high, draws 2.07 mA.