What Does ‘Burn Time’ Mean?

Burn time is the definition of how long in minutes or hours the torch will produce a useful amount of light. 

This is often measured in different ways by different manufacturers; refer to the NEMA FL-1 standards We measure our burn time, based on the time it takes to go from 100% to 50% brightness as we consider this the point where the drop in brightness is noticeable; and the battery should be replaced.

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