inflated run time

The flashlight takes 3 AAA batteries (included). It will last 4 hours at 220 lumens, 8 hours at 110 lumens, 15 hours at 22 lumens, and up to 72 hours in strobe or SOS mode on full battery power.

Those are some seriously good AAA's

http://www.amazon.com/Nebo-Redline-Tactical-Flashlight-Strobe/dp/B0049M8I22/ref=cm_cr_pr_product_top

a few members have this light but i've never seen the reviews $25 and 3 AAA's Frown

Coast rates a lot of their flashlights the same way. Using alkalines until the light turns off.

I suppose it's the same way the rate LED's to be good for 100,000 hours...good as long as you don't mind them only just lighting up that is.