Wow - not sure why yours measured out so much poorly than mine. I documented my results in post #138 here: https://budgetlightforum.com/t/-/36643
I'll repeat it here:
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Tail amps on one EFEST 4200 40/60 cell - measured with direct contact on the driver (14 AWG DMM wires):
Lo: 0.54A Med: 1.40A Hi: 2.4-2.5A (readings are moving around, generally go up over the first few secs)
Tail amps on four EFEST 4200 40/60 cells - measured by jumping the switch with the DMM leads:
Lo: 0.77A Med: 2.10A Hi: 3.58A (readings appear to be steadier)
On the one cell with no battery housing or tail, pretty loud buzzing. On 4 cells all closed up, but with the tailcap removed to expose the switch, the lower modes seemed silent.
Lumens on hi: 1020 @start, 962 @30 secs (my PVC lightbox)
Throw on Hi - measured indoors at 5 meters, as I always do:
163 kcd (807 meters)
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We are not even close: 1.88A compared to 3.58A, but using 4 cells as opposed to 1 cell makes a big difference. My measurements were done with the light totally stock accept for adding Nyogel on the threads. What exact cells did you use? How many? Were the cells fully charged?
Note: 33.6 lux @2 meters is 33.6 x (2x2) = 134 kcd
Our throw #'s are closer than I'd expect for such a big difference in amps - not sure what's going on there.
Also I measured 9.5 mm clearance between the driver and LED plate (post #148 here: https://budgetlightforum.com/t/-/36643) while you noted 3 mm. I could re-check, are you sure of this number?