I have an stubby UltraFire LED flashlight very similar to that one. I also have an 8000Lumen UltraFire. I can shine that one up a 350ft communications tower at night and light it to the top. You can also get a 16000Lumen UltraFire. Granted these really bright ones don't last long on the Li-Ion Batteries when they are at full brightness.You guys are all sissies!
Nitecore "tiny monster" 3500 lumens, Burn your eyes right out of your skull.
WARNING: Never shine these lights into someone's face (or your own). That intensity can cause instant damage to the retina of your eye.