Some key points taken from my review of this light here:
https://budgetlightforum.com/t/-/9569
Tailcap current through switch
5.3A - HI
1.95A - MED
.36A - LO
With my 2.3 Ah (tested) CGR18650E cells that equates to:
1.74 Hours – HI
4.71 Hours – Med
25.6 Hours – Lo
-Note these current measurements are shared across 4 parallel 18650, so each cell on only “sees” 1.33A on HI. This is an extremely efficient application of power. 1.33A is also a very easy load that any 18650 cell can handle. To put it into perspective, the TR-J12 starts out drawing ~3.6A from each cell in 2-cell configuration, but the current draw increases to ~6.5-7A (!!) as the battery voltage drops. Nearly identical Lumen outputs, one design severely tax-ing its cells, the other doesn’t even break a sweat.
FIXED exposure + White balance beamshots.
TR-J12
5T6 (notice warmer tint color, I got lucky on the tint lottery)
TR-J12
5T6
