Runtimes: Specs vs. Real Life

[uh1c]

I am well into a runtime test with the Fenix T1 on the included Panasonic CR123a cells. The specs say: Turbo Mode: Constant 225 Lumens, 1.5 hours ¨ General Mode: Constant 60 Lumens, 10 hours" As I am now at about 17 hours (light is dim now guesstimated to be 2-3 lumens), I wonder if the runtimes listed in specs generally are to be assumed in each case to mean "runtime until light is at 50% output". Anyone know? TIA

 

[Marduke]

Yes, which happens when the light falls out of regulation. You can see this on the runtime graphs.

 

[uh1c]

Thanks!