The GT, Proto V2 arrived!, the BLF special giga thrower

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fuzun
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bwl123 wrote:
fuzun wrote:
The Miller wrote:
Yes PayPal is the method of paying.

Well whether it be taxes, administration fees and taxes on those, it must be paid
The smaller the taxed value the higher the part fees and such is of the to be paid amount, making it feel not nice.
I rather pay €25 of which €20 are taxes and €5 fees then the other way around as it is now with a €25 valued item if duties are due.
In this case just choose the best shipping method, I read up to $800 for DHL to US so that is easy choice if living in US.
I will choose the alternative and get it in two Wink

Well, what is the solution for the people (if any except me) who can not use PayPal? I have VISA Debit card. Maybe producer can open a Aliexpress page for payment.

For the tax, I do not understand about getting it in two. What does that mean? Like splitting into parts to avoid paying tax?

fuzun
Do you live in the EU?


No, I live in Turkey which is in Middle East I think.
bwl123
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fuzun wrote:
bwl123 wrote:
fuzun wrote:
The Miller wrote:
Yes PayPal is the method of paying.

Well whether it be taxes, administration fees and taxes on those, it must be paid
The smaller the taxed value the higher the part fees and such is of the to be paid amount, making it feel not nice.
I rather pay €25 of which €20 are taxes and €5 fees then the other way around as it is now with a €25 valued item if duties are due.
In this case just choose the best shipping method, I read up to $800 for DHL to US so that is easy choice if living in US.
I will choose the alternative and get it in two Wink

Well, what is the solution for the people (if any except me) who can not use PayPal? I have VISA Debit card. Maybe producer can open a Aliexpress page for payment.

For the tax, I do not understand about getting it in two. What does that mean? Like splitting into parts to avoid paying tax?

fuzun
Do you live in the EU?


No, I live in Turkey which is in Middle East I think.

………………….
Check with your customs what the minimum amount that will avoid paying tax and VAT if there is any in your country.
In the EU VAT is payable if the amount is above 22 Euros.
For EU Citizens and others who ask for the alternative method of shipping the head and tube will be sent separately by China Post and priced at 20 dollars each.

EU residents FYI:
http://ec.europa.eu/taxation_customs/individuals/buying-goods-services-o...

JamesB
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Not sure if it’s an optical illusion but it looks like this thing doesn’t fully focus till at least 50 meters

Texas_Ace
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nodoubt wrote:
R10500 wrote:
amazing… only thing i can say. except that the lux really falls short of the expected 1.2 mil.
yeah i had 1.2 mill in my head also for this light or maybe a tad more hope it continues to improve with more time, and more distance my modded tn42 does an honest 770 k lux, so one would think with reflector size going from 3.5 inches to 5 inches, it would be all over 1.2 mill or so is it a glass front or plastic ?

I expect things to improve with more distance and we still need to figure out the bin of the LED and play with the focus ect. If I think there can be focus improvements I will 3D print some new centering rings and try them out.

Not sure if it will hit 1.2mcd but it should improve if I had to guess.

The lens is AR coated glass, pretty nice stuff it looks like.

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The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

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My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

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Texas_Ace
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“Giggles” arrived a little bit ago, sadly it will most likely be tomorrow before I can really dig into it but I like what I have seen so far to the point I can’t get this silly grin off my face!

Hence the name “giggles” that was promptly bestowed upon it. The first of my lights to get a nickname actually.

I have to say, this thing is way more practical then it sounded on paper, I could really see using this if I needed to see long range.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

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Texas_Ace
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Copy / pasted from another thread:

Tom E wrote:

Looks Awesome! Can you take full outer measurements and post in OP? I can’t find them in the GT thread OP either – no outer head diameter #.


Thanks!!

134mm head OD
85mm fin OD at button
56mm battery tube
62mm battery cap OD
~315mm total length with long battery tube (ruler only goes to 305mm, guessing on the last 10)

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

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Tom E
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Thanks!

cypher1024
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All of these developments are super exciting! Please put me down for one more.

nodoubt
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JamesB wrote:
Not sure if it’s an optical illusion but it looks like this thing doesn’t fully focus till at least 50 meters

!https://img4.hostingpics.net/pics/791995IMG0129.jpg!

yeah, almost looks like 2 beams

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I want to pay now. Lol.

R10500
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AR coated glass? Now we’re talking! It’s getting better and better! anyone has any ideas for a pouch …. rucksack… for this? No molle bottle pouch is going to swallow this one up for sure

cypher1024
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If you’re just thinking about carrying it, it’s got holes for a sling.

Texas_Ace
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I put the sling from my S70 on it and it works perfectly. The rotating tailcap design they came up with is fantastic.

Got some beamshots a few mins ago, Can’t wait to see how they turned out tomorrow.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

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Newlumen
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I already know GT will be great.. I have a sd75. Battery carrier is good. Threading are smooth and slide in easily.

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Ooh nice
TA you have the first LT made, prototype 1 or GT 0,x
If team samples are going to be GT 0,9 or GT 1,0, I am curious to read what number we ought to put in place of the x Smile

JamesB wrote:
Not sure if it’s an optical illusion but it looks like this thing doesn’t fully focus till at least 50 meters



Yeah indeed it almost looks like two lights.
That darker middle part of a beam can be seen in several lights but as big as on the GT wow.

Trying to update the OP today, really busy.
List will also be updated soon.

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MARK
core list OP updated
Mr.Scotts list in correct order post 2 updated this list is updated to post 4499
Thanks Mr.Scott!

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Beamshot looks amazing but it ran for 5 minutes and head got barely warm!?

That’s not the true BLF spirit, I request a XHP70 prototype to be put together ASAP Big Smile

Maybe for 1/3rd of the throw but triple the lumens?

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adsum wrote:
They could also offer this short tube as an add-on filled with 4 extra batteries when LT takes the final orders. The offer could be like the long tube filled with 8 cells+the short tube filled with 4 cells.So 12 cells in containers. This way batteries could be shipped to those who have a hard time getting them shipped otherwise. And those who have to use the 2 part shipping option this could work as well.

I’d be in for a short tube as an add on.

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will34 wrote:
Beamshot looks amazing but it ran for 5 minutes and head got barely warm!?

That’s not the true BLF spirit, I request a XHP70 prototype to be put together ASAP Big Smile

Maybe for 1/3rd of the throw but triple the lumens?

This is in the works, most likely do it when the next round of prototypes / samples show up.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

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JamesB wrote:
Not sure if it’s an optical illusion but it looks like this thing doesn’t fully focus till at least 50 meters

That’s good, for best throw is should not fully focus anywhere, except at infinity.
If it is focused at 50m, then past 50m it would spread out and lose intensity faster than 1/r^2 which would make all the lux ratings meaningless and have less throw.

nodoubt wrote:
yeah, almost looks like 2 beams

It is not two beams, it is a cylinder viewed from the side, the top and bottom appear much brighter.
The light emitted at 45 degrees from the LED and reflected by the parabola contains the highest amount of luminous flux, which gives the beam this look with a dim outside ring and center but bright in between.
You can see this effect more clearly on spotlights that use a larger reflector, such as the maxabeam or pretty much anything with a 5” or larger reflector.
This is simply how the light is distributed.
Tom E
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I'm thinking the 10-15 meter rule still applies. Been proven in the past, of course on smaller throwers, but what you measure at 10-15 meters is no less than what you measure at 100 or 200 meters. It was proven out on the old modded TN31's w/dedomed XM-L2's that do ~600 kcd, for example.

Enderman
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Tom E wrote:

I’m thinking the 10-15 meter rule still applies. Been proven in the past, of course on smaller throwers, but what you measure at 10-15 meters is no less than what you measure at 100 or 200 meters. It was proven out on the old modded TN31’s w/dedomed XM-L2’s that do ~600 kcd, for example.


The larger the reflector or smaller the light source is, the longer the distance that needs to be used.
.
For example:

Moon Blaster: 120W Hi Pressure Mercury short Arc, 9” reflector
16.1 Million CP (Measured by ma_sha1 @ 100 meter distance)

16.7 Million CP when measured @ 10 meter distance

Mega Blaster: 120W High Pressure Mercury short Arc, 4.5” Aspheric lens
5.0 Million CP (Measured by ma_sha1 @ 100 meter distance)

5.5 Million CP when measured @ 10 meter distance

Maxa Beam: 75W Xenon short Arc, 5” Hi End Reflector
2.3 Million CP (Measured by ma_sha1 @ 100 meter distance)

2.3 Million CP when measured @ 30 meter;

1.9 Million CP when measured @ 10 meter.

Military short Arc: 150W Xenon short Arc, 6” Hi End Reflector
0.8 Million CP (Measured by ma_sha1 @ 100 meter distance)

1.1 Million CP when measured @ 10 meter distance

The conclusion was that about 30m is good, 10m is not far enough for these large diameter lights.
.
My point is that if you focus it too close you will end up with a diverging beam past the focal point, which will not give the longest possible throw.
You can read here about how LED lights can be focused for the best throw without having to take lux measurements very far away:
http://budgetlightforum.com/node/55428

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Put me down for one.

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Ok, my long tube prototype arrived yesterday. I opened it up and promptly dubbed it “Giggles” as sounds kept coming out of me that I had no control over.

So after putting some cells in Giggles I turned it on and it earned it’s name. It is a normal flashlight, except 3x the size in every way, it is a BLAST to use. The beam is very intense.

Then I hit a snag. It seems that somewhere along the line, possibly in shipping something ended up on the LED causing it to burn itself after a few seconds of use. After further inspection it appears to be some chips from the centering ring. If you look closely you can see said chips:

This is most likely due to this light being a prototype and being reassembled many times, I am not worried about this for the production run at this point.

I tried to clean the burn spot off but the die came with it:

On the plus side it is a very nice MCPCB, I forgot to take measurements then but I can get some later, looks to be around 30-35mm and around 1.5mm thick I would guess.

So I had to replace the LED before I could really do any testing, I didn’t really have time last night but I put off important work and did it anyways lol. Luckily I had an E2 3C XHP35 HI LED as a spare and was able to swap it in.

After that it was smooth sailing. Time for more pics!

The overall fit and finish of the light is great, exactly as we designed it to be. Only major change externally is the addition of knurling.



The button is nice with good feedback, the ring was not included, I added that for a shoulder strap. The bezel didn’t want to screw down all the way at first but seems it is just a tight un-lubed o-ring. With some lube that should be fixed.

The rotating tailcap is great, very smooth, waterproof and works great. Threads are nice and square as well. Only issue with it is it will need a plastic isolator on the inside of the tailcap to ensure the cell carrier can not short out but that is an easy fix.




The glass lens is a very nice piece, very thick and clear with a good AR coating too boot!

The heat sinking fins look great, very beefy and functional as well. We could gain a bit of cooling by shrinking them slightly and adding an extra fin, this would be unnecessarily for the xhp35 but could become important for an XHP70 version. I am torn 50/50 on this.

The other side from the button has the tripod mount and a plug that can act as another sling connection point

The battery tube is nice and sturdy for sure, you could use this like a bat no problem, good square cut threads. The threads may be a little loose if not fully tightened but once tight they are totally solid.

The cell carriers are a VERY nice start, they could use a few changes but I will dig into these more later. Basically they need better springs (it is always about the springs) and some type of mechanical reverses polarity protection.

They would also be pretty simple to convert to 2s2p or 4P with a simple OSHpark PCB swap.




The driver is working flawlessly, I will let DEL give you all the details on it but so far my testing has mirrored his. A very good regulated output with a low dropout voltage and no apparent heat issues with the driver, which means it should be up to the task of driving an xhp70 Cool

Threads on the head are also very good

The reflector is good, but could be improved. It is impressive for such a large reflector though. The surface finish is a little on the rough side, it looks like machine marks are showing through slightly, this should be fixable with slower feed rates but would cost more and not sure how much it would improve things.

The clarity is also good for this size reflector, it gets hard to get a perfect finish as sizes go up. not sure there is anything we could do about this anyways.

The focus is good but not sure if it is perfect, I plan to try some different focal lengths and if I think it can be improved I will 3D print some new centering rings to try it out.

The reflector focus itself is a little strange, could just be the size of the reflector, I see rings in the beam when held right next to the table, a foot away they disappear. Anyone know what that would be from? I am used to the donut hole up close but never seen rings before.

You can kind of see what I am talking about in this shot:


Here are some pictures with a sling from my S70 installed on the GT,* it balanced very well with the long tube* but is still a tad head heavy, not enough to be a problem though. With the sling it works great for walking around and lighting things up at distance. Perfect hog light to spot them way off in open country.

I would be curios to see the short tube versions setup like this to compare.

Here it is with both carriers filled:

And here with only the rear carrier full:

Now for some comparisons to my other throwers, they are all using TA FET drivers, From left to right:

Astrulux S2 – C8 XP-L2 – Convoy L2 XP-L HI – Courui D01 XP-L HI – Convoy L2 with XHP35 HI – UF 1405 xhp35 HI – Convoy L6 xhp70 – BLF GT

No flashlight will ever look the same again.

A simpler shot:

Overall I am very pleased with this light as a first prototype!

Now for a few things that I think need to be addressed, these are not in no particular order at this point, just how I think of them.

1: The tailcap needs a plastic isolator to keep the cell carriers from shorting if inserted backwards, the anodization alone is not enough IMO.

2: The cell carriers also need some reverse polarity protection, I think that mechanical is the best option here. I am thinking a plastic piece that would go on the cell side of the PCB’s of the cell carrier and raise up enough to only allow button top cells to be used. This should be cheap and easy, simply drill a few holes out of a piece of plastic and sandwich it in the cell carrier before the PCB on both ends.

3: The cell carrier springs all need to be beefed up significantly. The resistance is a bit too high right now and a firmer grip on the cells would be good as well.

4: I would really like to see the button be lighted and use the lighted button features built into narsil.

5: In order to plan ahead for XHP70 versions of this light, it could be wise to shrink the cooling fins a bit and add an extra fin, not a big deal but should help keep an xhp70.2 cool. I don’t really have an opinion either way, I like how it looks now but also can see the cooling benefits.

6: Adding kunrling to the battery tube.

7: Lube the bezel thread o-ring to make installing and removing the bezel much easier, also ensure a good seal.

Nothing else jumps out at me right now, I will dig into it deeper over the next few days and report back on my findings. Overall though it is very close, just minor things that should be very simple to fix.

If anyone has any questions or things they would like to see pictures of, let me know so I can check them out while I am pulling it apart anyways.

I have some beamshots I will try to sort through later today.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

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I would prefer no mechanical cell protection. I only use flattop unprotected cells and would prefer not to change that if at all possible. That would also take away the big benefit of being able to use laptop pulls in a light that takes 8 cells.

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Pulsar wrote:
I would prefer no mechanical cell protection. I only use flattop unprotected cells and would prefer not to change that if at all possible. That would also take away the big benefit of being able to use laptop pulls in a light that takes 8 cells.

You can solder blob the cells very easily but if they used the setup I described then it would be quite simple to remove the protection for those that didn’t want it. You would simply remove the screws on the cell carrier and then pull out the plastic protection discs. Boom, back to flattop comparability

The assumption would be that anyone that can do that would be capable of not putting the cells in backwards. If they did, then it is their fault and it protects lumintop from any issues down the line as the most likely failure point would be a backwards cell, it has been seen in many cell carriers before and I would like ours to not have that issue.

Particularly as the first BLF light to use a cell carrier I want it to be the ultimate cell carrier from which all others take notes.

For those not capable of removing the protection disc, they are also not capable of being trusted to insert the cells correctly IMHO.

Personally I would leave the protection in place and solder blob my cells, it is easy to get lazy when inserting cells in a hurry and better to have something there to protect yourself and others.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

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Please put an S2+ or a Lumintop TOOL next to it on a picture Big Smile

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ZozzV6 wrote:
Please put an S2+ or a Lumintop TOOL next to it on a picture Big Smile

lol, I will try to remember to toss my EDC on the table next round of pictures

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung IH351D

Complete collection of all my LED test Charts

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Quote:
The reflector focus itself is a little strange, could just be the size of the reflector, I see rings in the beam when held right next to the table, a foot away they disappear. Anyone know what that would be from? I am used to the donut hole up close but never seen rings before.

Probably something I have mentioned first time I saw reflector, bottom should be open all the way without that ring surrounding plastic centering. The LED is sitting way to low, probably 1mm under perfect focusing. Even like the way it is now it can be improved using better centering ring that will allow reflector to go deeper like in M3X UT… Like this

This is just too thick…

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I guess if it’s something the majority wants, but personally I do not want to have to solder blob a cell, and don’t really want to have to take apart the carrier to use… Or worst case, they design it so it can not be removed.
Not too hard to put negative on the spring, and positive on the nub side.
I just think it’s an unnecessary added layer.

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