Zebralight SC600 except for being run over by a tractor trailer.
I can see BOTH lights making through the first and second rounds, a little bruised maybe, but O-L can wave his magic wand and they WILL work.
The third test .... Ohh the carnage, ..... not going to be pretty
I honestly don'y think either will make it out ALIVE, since I have to chose one .............
I'm hoping the UF-T50 will make it
This will be very interesting, informative and another ingenious BLF contest.
VERY SPECIAL THANKS to the Executioners and to the Doctor of Illumination. (O-L, I hope there is something left to rebuild)
- The Shadow — freeze, submerge and boil.
- scaru — extended runtime and drop tests.
- mkett39 — drag behind vehicle, drop in bucket of motor oil, run over with tractor trailer.
- Old-Lumens — restore lights in whatever creative way he sees fit; obviously these will become one-of-a-kind collectors items.
I’m gonna go with the Zebralight based on quality of construction. Gotta love mkett39’s tests.
UF-t50 gonna get’er done
I will take a risk and call it UF-T50 since I have had one failed H51 but 0 failed UF´s so far 8)
If I should foresee something, I would say that ZL´s driver gives up.
Li-ions don't leak, they just explode. :P
Just remember we need a video of the actual explosion or it didn't happen.
Of course, the idea is to push and test these, not doom them to the pit of never ending darkness. Before this thread even went up, mkett39 suggested running them over on a surface that has some give 
Here’s an example of that with a steamroller: http://youtu.be/km_rodQCs2M?t=1m17s Trust us :Evil:
Ultrafire for me…Mine feels a good solid light and i reckon it should last well
Shadow Update:
Tests performed so far: bury in snowbank overnight, leave lit underwater in basement sump for one hour, wash with laundry in washing machine twice, on heavy cycle both times, dry in dryer for 40 minutes, bake in oven at 200 degrees F for one hour. Both lights survived but one clearly did better than the other — so far, that is! But which one?
Remaining tests: freeze overnight (lit) in blocks of ice, defrost and boil with eggs for breakfast. Then off to scaru!
Stay tuned — details and pictures will be posted just after the giveaway closes, probably on Friday.
I’m assuming you will take the battery out, but it’s still dangerous. The flashlight is basically a sealed container, with no way to let air escape. When you reach boiling temperatures, the cylinder may vent violently (small explosion) sending boiling water everywhere.
Just a friendly warning. I’ve been scalded by boiling water before… not fun.
Roger that.
Wow! Sounds like they have already endured a heavy amount of abuse! Can’t wait to see the results and photos!!!
Bandwagonner here. Zebralight is my go!
Zebralight SC600 will win. Thanks a lot ! ! !
I though scaru was the resident expert on washing machine and drier tests?
Tallied up votes so far:
Zebralight SC600: 58 votes
Ultrafire T-50: 39 votes
Still pretty close.
After liberating them from solid blocks of ice from being frozen overnight I boiled them with two eggs, then dumped the boiling water out and immediately filled the pot with cold water. Plenty of pics to follow after the giveaway closes. 
My tests are done and have mailed to scaru. Have some jaw dropping pics to post once this closes. 
You know you really are a nut case, don’t you.
I think you should have done all of these tests while holding the two lights.
The tests so far would kill the average human being, so if the flashlight owner is dead, who cares about the light itself? LOL.
I just got to play wid ya a little bit. Time to go clean up the O-L workshop and prepare for for the incoming patients. Let's see, I will need two hospital beds, plenty of bandages, some more pills (for me).