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Runtime Comparison between Olight S2A and Other 2 x AA Flashlights

Olight S2A has unparalleled performance on all brightness levels, showing both prolonged runtime and unrivaled stability in high output. 

a) Special battery: Using Olight branded lithium iron disulfide (Li/FeS2) batteries, S2A has over twice of runtime as compared to LD22 using its own batteries on the most commonly used brightness levels. The superior performance is largely due to higher capacity if lithium iron disulfide batteries under high discharging current of 1A.

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