UltraFire WF-502B XM-LT6 5-Mode 510-Lumen Memory White LED Flashlight with Clip (1*18650)

Pros: Very bright light for the money.
Build quality is standard Ultrafire WF-502B... which is sufficient for most.
Light draws 1,5 amps in high mode which translates to 520 Emitter Lumens for an XM-L T6 bin: So true to the description.
Long run-time for the lumens: 1,5 Hours out of a single 18650 Cell is not bad at all - if you can manage the heat...

Cons: Heat transfer from Pill to housing is insufficient.
If you intent to have the light in Turbo mode for more than 5 min, you need to improve it: Some Aluminium foil around the pill to fit it snuggly in the body will do the trick... (true for all Ultrafire WF lights I have seen).
UI needs some getting used to.

Other: Excellent value for money, excellent Lumens per watt, but some rework required.

Pros: Very bright light Compact size Nice design Batteries last long

Cons: The build-quality is acceptable, but not perfect. For the price however, it is more than adequate.

Other: I think this flashlight is a great buy, given the amount of lumens, the price and it's compactness.

Pros: + Sturdy construction - seems like it could handle a fall or 5
+ Water resistant - all o-rings in place; even at the lens
+ Extremely bright - lights up my already-lit office
+ All modes work properly - including SOS
+ Pre-lubricated - for your pleasure
+ Good flood - plus a hot-spot!

Cons: - Can’t tail-stand - problem with all the 502b’s
- LED not centered - doesn't seem to affect the beam pattern though
- P60 drop-in is loose - needs aluminum foil heat-sinking to prevent LED damage
- Heat-sink plaster used under star instead of grease - makes it harder to add heat-sink grease or even adjust the LED’s position

Other: Buy this if you need a hand-held flooder with a nice hot-spot!

Pros: In my opinion this is one of the best flashlights from DX. It's small and convenient and it allows you to make a lot of modifications. Most of the parts are common on DX so it is easy to mod or repair. What I like about this flashlight the most is ability to change the drop-ins so you can make your own one. I choose a XML-T6 version because I think it's the brightest of this model (502B).

Cons: The most annoying part of this flashlight for me is it's optics. The bright dot on the middle is not nice and since this is a flooder it looks 'strange'. However there is a thrower reflector on DX so I will try this one if it's any better.

Other: It's very nice and convenient flashlight, really worth the price. Especially if you like to mod the flashlights and want something relatively small then this one is for you. But as with any other flashlight here you should first think about improving the heat transfer from LED to the case.

Pros: -Cheap -Sturdy construction -Good finish -Great tailcap switch -Mode memorizes -Compact -Good amount of light -Good threads -Nice color BIN -High-Medium-Low modes

Cons: -Oval hotspot -No 510lm. I guess no more than 300lm -Batery feels loose inside flashlight -5 Modes -Strobo and SOS mode -Clip -Only 0.95A on tailcap (maybe batery problem) -Decentered hot spot in flood area -Bad heat transfer from Pill to housing

Other: Buy it.

Pros: - Bright. Has roughly the strength of car's headlight (but the focus is of course worse than that) - Amazingly good as a floodlight (can light up an entire room when pointed at the ceiling, in forest at night illuminates entire area before you) - Works fairly long on one battery (max mode for around one hour on "flaming" TrustFire 2400 mAh cell) - Very sturdy body. - Good primary modes (max, middle and low), especially low mode is perfect for using in your house at night, when you do not want to wake anyone else up on your way to the closet. - I love the clip. It may look flimsy, but it's perfect for my tool vest. - Small enough to be carried in a big pocket (or in a vest, hehe). Can be used as part of EDC kit.

Cons: - THE PILL HAS ALMOST NO CONTACT WITH THE BODY. Out of the box, the torch overheats and turns off after 15 seconds (that's right, seconds) of operation. Absolutely requires the tinfoil trick (wraping the pill in multiple layers of tinfoil until it sits snugly inside the body) to work. Even after using the tinfoil, the torch WILL overheat if left in max mode for too long, which is anything longer than 10 minutes. - This torch is definitely not a thrower. It's maximum reach is around 50, maybe 75 meters (in perfect conditions). Maximum useful beam distance seems to be 30 to 40 meters. Wildlife can be identified from 100 meters, thanks to movement and glowing eyes. - The on-off switch mounting ring required tightening. Before that the brightness changed at random during operation. - The stroboscope mode I can understand, it may be useful to someone. But SOS? Seriously...

Other: - If you need a good, cheap floodlight and have a lot of tinfoil (or some other heat sinking material) at hand, buy it. It will be worth it's price. Perfect for my favorite nighttime activity - taking a walk in a forest. I love the price. In my country anything comparable in brightness costs at least four times as much. - If you are searching for a thrower or for RELIABLE and WELL MADE flashlight, then you are in wrong place. Continue your search.

Pros: It amazed me how much light this little flashlight produces. I never expected this. In the Netherlands you can not buy such a perfect flashlight for this money.
Even better is the fact that it won't damage if it is under water. The seals are pre lubricated, and don't leak at all.
I use the flashlight for my work, to inspect machinery. It is very usefull!!

Cons: I did not have any problems with the warming up of the flash light. Maybe the flash light is improved in the last time. I did not use tinfoil or whatsoever. So no cons at all!!

Other: It is really value for money. If you need a small handy but powerful flashlight, just buy this one,

Pros: +Good, good ligth for the money +Looks solid, good alumminium body +compact, you can carry it in a jacket poket (too big for pants poket) +5 modes! the high mode its really blinding, as the strobe mode, good for defense +you can use two 123 batteries too!

Cons: I can`t find anything wrong. This is a very versatile flashlight, it is not intended for long periods of continue use in high mode, thats it.

Other: Buy it, it cost almost nothing. In my country -Argentina- a ligth this powerful cost me 4x or 5x times more.

Pros: Excellent little flashlight. It is constructed solidly and has rubber rings at all the joints to keep water out. I haven't immersed it in water to see how it would cope, but I expect that it would withstand a reasonable amount of water. The rubber rings can be "greased" with a good ring grease to make the seal better and to make opening and closing the torch for battery changes easier.

Cons: The battery isn't as easy to get as C-size or AA-sized batteries. Still, it does its job!

Other: Great for home use. Sturdy and light enough as a very bright, emergency light source for backpacking.

Pros: Excellent value. Sturdy build for the price. Good size - feels good in the hand. The clip is good for front pants pocket carry. Able to accept other P60 type drop in modules. Mode memory is nice, as I prefer to start in medium or low inside the house. PWM is used in medium or low modes, but the frequency of the PWM seems to be higher than some of my other flashlights. It isn't as noticeable until you point it at a moving ceiling fan.

Cons: Switch protrudes slightly in the tail cap so that this light does not tail stand. Glass lens is not easily removed without tools. I wish the blinky modes could be hidden. I'd rather not have to cycle through them every time.

Other: One of the best lights for bang for the buck and for efficiency. The XM-L LED is not driven to the fullest extent, and is therefore operating in a more efficient regime. Should get long run times.