Clear and Concise reference for the ANSI FL1 Standards.

This is a pretty amazing article for taking a complex subject and boiling it down into a solid quick reference.

Full article here: ANSI-FL1 Standard [h=2]Quick Intro:

ANSI FL1 Standard[/h]



FL1 Standard – these specifications can be found on the packaging of most flashlights today. What do these specifications mean for you, and how can you interpret this information? Since we started including runtime graphs in our reviews, we've gotten a lot of questions about the ANSI FL1 Standard, so this article is intended to give you a better understanding of the technical aspects of flashlight performance.


Additional Quick Links

• ANSI/NEMA FL 1-2009 Standard – Details about the FL1 Standard.
• Interpreting the FL1 Standard – Decoding the technical description.
• Limitations of the FL1 Standard – Shortcomings of the FL1 Standard.
• LED-Resource Abbreviations – List of abbreviations used in our runtime graphs.

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I just checked it... working fine for me

On limitations of FL1 standards. It does not take it account the runtime of regulated lights. Those graphs look like they are interpreting direct driven lights. Please correct me if I'm wrong.

Thank ya!!