Review of the Zweihnder ME-05, kinda sorta . This item was provided by Lightcastle for review.
When Lightcastle was looking for reviewers, I jumped at the opportunity to be able to do a review like the many that I’ve read here on BLF. I told them that I would do a honest and objective review with no loyalty to brands
I was given a narrow price range to select from and it was hard to find something that hasn’t been already reviewed by a BLF member.
After picking through the scraps that my fellow BLF reviewers left, my first two selections ended up being so old that they were unavailable. Soon after, Lightcastle did a purge of their website and the Zweihnder ME-05 suddenly appeared in their new arrivals. It had three XM-L2 U2 NW LEDs in it where most of the lights available had XM-L or older LEDs and it was within the narrow price range I was given. It also hasn’t been reviewed by anyone on BLF. I finally found a light to review. 
Zweihnder ME-05 regular price: $32.75
Features/Specifications (From Lightcastle product page):
Weight: 334.00 g
Dimensions: 23x6x6cm
Lightcastle wasted no time and shipped the flashlight to me. Three days after it was shipped, it was processed by ISC New York USPS. Two days after that it went to Flushing New York USPS and ten days after that it was delivered to me. This further justifies my belief that the USPS is run by trained monkeys.
It arrived in the typical bubble envelope. Time to open the envelope and see what’s inside.
Here we find a plain cardboard box with a sticker that says 431059, which just happens to be the SKU# of the Zweihnder ME-05. Time to open the box and see the Zweihnder ME-05.
Hey! That doesn’t say Zweihnder ME-05. It just says SecurityIng® 
I believe that Lightcastle (like most e-tailers) drop ships their products and had no hand in this mistake or switcheroo. I think the blame falls squarely on the distributor. When you think about it, why would Lightcastle send the wrong light for me to review when they know that I would bring it up in the review? That would be insane.
Here’s a size comparison of the SecurityIng next to a UniqueFire UF-V8.
Here’s a view of the head, tube and tailcap.
Here’s a closer look at the threads and o-ring. The threads are dry as a bone.
Now for a look at the reflector and the three XM-L2 U2 NW LEDs. Hey! Wait a minute. Those LEDs are XM-L, not XM-L2.
Here’s another size comparison of the SecurityIng next to a UniqueFire UF-V8.
Here’s a O.D. measurement of the SecurityIng’s Head. 55.87mm
Now it’s time to check out that NW tint.
On the left is a Convoy C8 with a 3A tint and the SecurityIng on the right.
On the left is a Warsun CT9T 1A tint and the SecurityIng on the right.
Well that just shows you that the SecurityIng is CW, not NW. After going side by side with my Convoy C8 and Warsun CT9T, I think it blows the 2800 lumen claim out of the water.
After searching around, I discovered that this isn’t a new light at all but just another clone of the Sky Ray 3XT6-818, Hunterseyes 3XT6, SingFire SF-317 and the LT-77299. There are probably more clones out there but I haven’t found them yet.
BLF member Foy did a review back in 2011 of the Sky Ray 3XT6-818. It has all the information you need to know about this SecurityIng flashlight. Review: Sky Ray 818
After seeing how this light performed, I decided to skip the lux meter test and outdoor beam shots.
My conclusion is that this light is not what was advertised but just another version of an older light. Maybe if the distributor were to ship an actual Zweihnder ME-05 for another forum member to review, it might be a nice flashlight that comes with NW XM-L2’s and can do 2800 lumen.
The End.
