Sofirn IF25a Flashlight: Turbo tests Samsung 40T, Sofirn 4000 and 5000mAh
In this video, I test out three different 21700 cells (Samsung 40T, Sofirn 4000/5000mAh) in my Sofirn IF25a to see if any of them produce more lumens.
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Some reviews find that using a high drain cell like a 30T/40T can increase the lumen count up to 4200+ lumens in the IF25a. I used a simple lux app on my phone and the ceiling bounce test.
Test results: no significant difference in brightness.
I wonder if the cell included with the IF25a is already a high drain one (Lishen LR2170LA). I don't have any way of measuring the total lumen output of the light but it's apparent through lux readings that the output across all three cells was similar.
What do you guys think? Am I missing anything? Let me know in the comments below.
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