Surefire LX2 Lumamax runtime change?

airrick

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Joined
Nov 11, 2011
Messages
14
Did Surefire change the runtimes on the LX2 Lumamax? I see some of the boxes and the website has a runtime of 47 hours at 15 lumens. Other boxes I'm looking at on eBay (and mine) have a runtime of 30 hours at 15 lumens. My serial number is A457673 if that helps.
 

Danjojo

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Joined
Nov 20, 2011
Messages
78
I think at different times for different lights they have used time till you reach 90%, 50%, or 10% of stated output or when light goes before 50 lumens....and for the same flashlight, runtime ratings for high/tactical output criteria can be different than the low output runtime. Just different marketing.
 

airrick

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Joined
Nov 11, 2011
Messages
14
ok thanks. Just wanted to make sure I didn't get a different 'batch' or something with lower runtimes.
 

Erzengel

Enlightened
Joined
Jun 29, 2007
Messages
296
Location
Germany
They have changed the runtime measurement according to the ANSI-FL1 standard. Therefore the values have changed.
 
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