BLF Kronos X6/X5 GB - Group Buy now closed.

7118 posts / 0 new
Last post
Brett H
Offline
Last seen: 11 months 2 weeks ago
Joined: 12/03/2015 - 11:20
Posts: 416
Location: Florida

ToyKeeper wrote:
southland wrote:
Brett H wrote:
southland wrote:
People need to be more grateful, … Nitpicking on thease minor flaws is very discouraging …

Sorry, I mean no offense but this and others like it are the very type of post I find nonproductive.

How does nitpicking help? … Nobody likes being thanked for all the hard work in this way.

To restate an earlier thought in a different way…

Thanks for thinking of us organizers, southland. Defending us, fighting for us. Skirmishing with the nay-sayers. The thought is appreciated. Warm fuzzies all around. Smile

However, I kind of agree with Brett… for one simple reason. I knew what I was getting into when I signed up for this.

I can handle the flames myself.

I hope you understand that I in no way intended to minimize the efforts you put into this light ToyKeeper! I truly didn’t mean it that way. I was simply stating that being understanding of both; those who had legitimate claims of a defective or inferior product, as well as those who went through the grueling process of bringing this set to fruition, should not be considered mutually exclusive of one another.

onetrickpony
onetrickpony's picture
Offline
Last seen: 1 year 4 months ago
Joined: 03/17/2014 - 22:22
Posts: 388
Location: NH

We’re all here because we like flashlights.

There are certain facts that are indisputable:

1. Many people worked very hard to make it possible for this GB to happen.
2. This group buy IS a first in many ways.
3. There are problems with all GB’s.
4. The lights are, as a design and implementation, amazing.
5. No single thing is perfect.

I could keep going for a long time, but instead I’ll get to the point of why I’m writing this.

I WANT these lights to be incredible.

Why?

Well, I have been playing with LED’s since I was a little kid. My dad had drawers full of all kinds of electronic components and anything that made lights or sounds was always something I wanted to play with.

I had asthma as a kid and had a bunch of inhalers around. They looked like pretty good pistol grips to me, so a little electrical tape, a toggle switch, a few LED’s, some wire, etc, and I had a gun! (Yet I thought MacGuyver was awesome, explain that!)

I still have the first flashlight someone other than my parents gave to me, it’s a AA mini-mag with red anodization. It’s the old kind with the shorter head and reflector, I just can’t bring myself to mod it. It was a gift from my friend’s mom, I just found out she has cancer. I’m going to stop by soon and I’ll probably mention how much it means to me. Not because it’s a flashlight, but because I treasured it as a kid.

I’m not trying to make everyone sad or tell sob stories, it just happens that LED’s and flashlights have been a part of my life since I was a little kid. When I found out that other people were into them I was a little upset, only because it was always MY thing, and it’s not like I was on the football team or anything. (Full disclosure, I got big in my early twenties)

You’d think that because I’ve been interested for so long I’d be just about the most knowledgable. Nope. I knew about the good LEDs fairly early on, I’m pretty dang good at modifying Maglites, and I’ve done a few other pretty cool projects, but nothing like what many others here have accomplished. Here’s where this becomes relevant to this thread again if you’ve managed to read this far.

The people that put these sets of lights together are almost painfully modest.

I read a comment that suggested that it was an easy task due to the fact that the X6 had already been designed and produced. That is a drastic simplification of the situation.

I’m not going to go into boring detail, but these lights are very special. The details of the changes and features of these lights are pretty well documented in this thread. I suggest if you have further doubts to get a set of the SS/CU in your hands. No, you can’t borrow mine Big Smile

Take a moment to realize that these lights are just a moment in time, there WILL be brighter lights, there WILL (probably) be another group buy that involves lights with a similar set of features, there WILL be moments in which you will be dissapointed for a myriad of reasons about something that you purchased.

But none of that matters. What matters is that most of the people that were looking forward to these lights are not disappointed or jaded or complaining. If they are like me, they have been showing these suckers off to anyone that will listen! These lights are, to be frank, AfreakingMAZING!

All of that being said, I return to my original statement, with the hope that what I’ve written will be heard and maybe even have the effect I was going for.

We’re all here because we like FLASHLIGHTS!

Turn on your favorite light. Don’t you want to talk to somebody who gets it?

myhken
myhken's picture
Offline
Last seen: 1 year 9 months ago
Joined: 07/03/2015 - 17:20
Posts: 549
Location: Norway

onetrickpony wrote:
I answered your questions despite being irritated with your tone numerous times because I thought that there was no way that someone could receive as much criticism as you have and continue to be difficult when someone treated you kindly in a gesture of good faith.

You didn’t say thank you, even though myself and others have tried to help you. You refuse to listen when others who are authorities on the subjects you question try to give you information that would solve your problems. You insult all of us by claiming that you were the one that was being reasonable.

If you have any other questions, I hope someone else has more patience than I do, because I’m done.

Btw, I’m not going to alert Neal that you are a trouble maker, but I wouldn’t be surprised if someone else does or already has.

You are on my permanent “Do not deal with” list that I keep in pen on paper on the top shelf of my desk.

The only reply from you is this:

Quote:
Your problems are beginning to excite my esophageal ganglion.

Btw, I sleep fine bathed in blue light and a haze of various frequencies in the non visual spectrum.

I made a joke to a friend the other day about the possibility of weaving protective coated copper thread into clothing fabric to create a Faraday cage, albeit an incomplete one. Lol.

Where is the help there? No reason for me to thank you for that post. I have thanked others when I have got good advises that I can test out.

Kenneth Myhre

onetrickpony
onetrickpony's picture
Offline
Last seen: 1 year 4 months ago
Joined: 03/17/2014 - 22:22
Posts: 388
Location: NH

myhken wrote:
onetrickpony wrote:
I answered your questions despite being irritated with your tone numerous times because I thought that there was no way that someone could receive as much criticism as you have and continue to be difficult when someone treated you kindly in a gesture of good faith.

You didn’t say thank you, even though myself and others have tried to help you. You refuse to listen when others who are authorities on the subjects you question try to give you information that would solve your problems. You insult all of us by claiming that you were the one that was being reasonable.

If you have any other questions, I hope someone else has more patience than I do, because I’m done.

Btw, I’m not going to alert Neal that you are a trouble maker, but I wouldn’t be surprised if someone else does or already has.

You are on my permanent “Do not deal with” list that I keep in pen on paper on the top shelf of my desk.

The only reply from you is this:

Quote:
Your problems are beginning to excite my esophageal ganglion.

Btw, I sleep fine bathed in blue light and a haze of various frequencies in the non visual spectrum.

I made a joke to a friend the other day about the possibility of weaving protective coated copper thread into clothing fabric to create a Faraday cage, albeit an incomplete one. Lol.

Where is the help there? No reason for me to thank you for that post. I have thanked others when I have got good advises that I can test out.

Read posts #5245 and #5246 you insufferable….. just don’t talk to me any more, k?

EDIT: IF YOU READ MY ADVICE YOU WOULD HAVE FOUND MY OTHER ANSWERS TO YOUR QUESTIONS. How’s that for some food for thought?

EDIT #2: Just to make sure you appreciate the irony, edit one was describing when I mentioned that you can search the thread, and also the entire forum.

myhken
myhken's picture
Offline
Last seen: 1 year 9 months ago
Joined: 07/03/2015 - 17:20
Posts: 549
Location: Norway
can wrote:
Assemble light, run very hot water on light, dissasemble light including reflector.

Tried with boiling water, still stuck.

ToyKeeper wrote:

Replacement parts won’t fix this.

A screwdriver and some fine-tuning and possibly a strap wrench will fix this.

Possibly a thin spacer too, like the one RMM at MtnElectronics carries (linked a couple pages ago), or a few sheets of paper cut to fit (or whatever else you can wedge in to keep the reflector from going too deep).

Tried with a razorblade, still no luck. Don’t have strap wrench. Thank you for the tips.

RobertB wrote:

Maybe try using a couple of the Jar grippers

Got one for my wife and she hasn’t asked me to open a jar in a long time ! (wine yes, jar no)

Ordered some Jar Grippers now, thank you for the tip.

will34 wrote:
Normally a yellow spot in the center of the beam means that the LED is too far up the reflector and needs to be lowered, or in this case the reflector has to be raised a tiny bit, less than 1mm. It happened to me in several mods and using a XP sized clear plastic insulator solves the problem. Richard has them.

Since the reflector is stuck I can’t raise it a tiny bit, But thank you for the reply.

Thank you to all others with replies to this issue, I have slept the last hours (time is now 8 AM here in Norway) so haven’t seen the last replies or comments.

Kenneth Myhre

myhken
myhken's picture
Offline
Last seen: 1 year 9 months ago
Joined: 07/03/2015 - 17:20
Posts: 549
Location: Norway

onetrickpony wrote:

Read posts #5245 and #5246 you insufferable….. just don’t talk to me any more, k?

EDIT: IF YOU READ MY ADVICE YOU WOULD HAVE FOUND MY OTHER ANSWERS TO YOUR QUESTIONS. How’s that for some food for thought?

EDIT #2: Just to make sure you appreciate the irony, edit one was describing when I mentioned that you can search the thread, and also the entire forum.

Sorry, did see them now. But as I have stated so many times, the reflector is stuck, so I can’t center the led or do anything. But thank you for the tips. It just don’t work in my case.

Kenneth Myhre

ToyKeeper
ToyKeeper's picture
Online
Last seen: 9 min 40 sec ago
Joined: 01/12/2013 - 14:40
Posts: 9984
Location: (469219) 2016 HO3

Brett H wrote:
I hope you understand that I in no way intended to minimize the efforts you put into this light …

As one of my role models says:
The Tick wrote:
<Arthur> No offense intended.

<The Tick> None comprehended!


I’m glad we’ve got that out of the way. Smile

Mostly, it seemed like an opportune time to surround myself with lava and act like a super-hero. It’s great fun. Here’s one I taught to my buddy Gandalf:



You shall not pass!

myhken
myhken's picture
Offline
Last seen: 1 year 9 months ago
Joined: 07/03/2015 - 17:20
Posts: 549
Location: Norway
Rufusbduck wrote:
everydaysurvivalgear wrote:
my reflector in my x5 is jammed also is this a problem? can i try and force it or will that be bad? any chance that the copper would shrink if its really cold or hot?
Coefficient of aluminum is much higher than copper so cooling it will shrink the reflector more than the copper head. If it’s jammed then either cross threaded or just too tight. If cross threaded it might appear tilted in the head. Copper is soft so over tightening could explain this or just from snugging the bezel. Don’t know for sure just educated guesses at this point.

Do you think I can put the light in the freezer a couple of hours, then try to get the reflector off? Or will it damage the light in anyway?

Kenneth Myhre

chouster
Offline
Last seen: 3 hours 58 min ago
Joined: 02/20/2014 - 15:05
Posts: 688
Location: germany

ToyKeeper wrote:
…act like a super-hero…

You are a super-hero! Isn’t she?
onetrickpony
onetrickpony's picture
Offline
Last seen: 1 year 4 months ago
Joined: 03/17/2014 - 22:22
Posts: 388
Location: NH

myhken wrote:
onetrickpony wrote:

Read posts #5245 and #5246 you insufferable….. just don’t talk to me any more, k?

EDIT: IF YOU READ MY ADVICE YOU WOULD HAVE FOUND MY OTHER ANSWERS TO YOUR QUESTIONS. How’s that for some food for thought?

EDIT #2: Just to make sure you appreciate the irony, edit one was describing when I mentioned that you can search the thread, and also the entire forum.

Sorry, did see them now. But as I have stated so many times, the reflector is stuck, so I can’t center the led or do anything. But thank you for the tips. It just don’t work in my case.

Too late, I have a suggestion for you that would probably fix the problem for you, but guess what? I’m not going to share it with you! If someone else posts a similar problem I will help them and maybe you can read it then. Otherwise, tough.

You really really really need to think more before you speak, otherwise I can’t imagine you enjoying this forum or any other for very long before people have the same opinion of you that I do. Good luck in finding your way.

I’m feeling like being nice, so I’ll give you a tip. Any time someone gives you advice, you have to try it for yourself, then think about why it worked or why it did not work. That may lead you to where you need to be, it may not. Smart people get things done.

myhken
myhken's picture
Offline
Last seen: 1 year 9 months ago
Joined: 07/03/2015 - 17:20
Posts: 549
Location: Norway

onetrickpony wrote:

Too late, I have a suggestion for you that would probably fix the problem for you, but guess what? I’m not going to share it with you! If someone else posts a similar problem I will help them and maybe you can read it then. Otherwise, tough.

You really really really need to think more before you speak, otherwise I can’t imagine you enjoying this forum or any other for very long before people have the same opinion of you that I do. Good luck in finding your way.

I’m feeling like being nice, so I’ll give you a tip. Any time someone gives you advice, you have to try it for yourself, then think about why it worked or why it did not work. That may lead you to where you need to be, it may not. Smart people get things done.

There is another with the same issue:
http://budgetlightforum.com/node/40642?page=177#comment-892968
So maybe help him.

In your two replies with help, both rquired me to get the reflector unscrewed, but when I could not unscrew the reflector, no of your replies was to any help for me, you understand that?
Or did you come out with a magic trick to get the reflector out, that I have not tried?

As you can see here: http://budgetlightforum.com/node/40642?page=177#comment-893049 I have got lots of tips, but no is working.
Ordered jar opener now, so maybe that do the trick.

Still, I don’t think the yellow spot will go away, the led is not so badly centered, but some improvement could be done.

Kenneth Myhre

saypat
saypat's picture
Offline
Last seen: 4 hours 2 min ago
Joined: 07/13/2011 - 20:32
Posts: 3508
Location: Calif

DB Custom wrote:
Saypat, great pics! VERY sharp, man don’t ya just love that knurling! Smile

Ken, you also have a nice shot there, those beauties really stand out in a crowd, even with their Al siblings. Sweet! Wink

thanks Dale, nice compliment coming from you, the Ansel Adams of BLF. Just a cheap Fuji bridge camera but it has a nice 2.0 lens on it. I’ll get some more pics of these terrific lights in the daylight.

onetrickpony
onetrickpony's picture
Offline
Last seen: 1 year 4 months ago
Joined: 03/17/2014 - 22:22
Posts: 388
Location: NH

I noticed that everydaysurvivalgear is having the same problem. URGH! I was hoping that Myhken would have to wait longer before I offered my assistance.

Here’s the deal, I’ve dealt with stuck fasteners since before I can remember, and anything with threads that threads into something else is technically the same as a fastener.

1. DON’T force it. It might break free, it might just break. You don’t want that.
2. Combination of patience, lubrication, and heat. I was going to break it down into a longer list, but if you try just one of these it probably wont work. So….. here’s what I would do:

IMPORTANT: DON’T USE MORE HEAT THAN YOU NEED OR YOUR ENTIRE LIGHT WILL FALL APART!!!!! (Excessive? Maybe, but you think I want those PM’s?)

CAREFULLY soak the threads with WD-40 or your personal favorite, but the milder the better, it’s an electronic device with a reflector designed to reflect…light…. so….do I need to bother? It only takes a tiny bit! Don’t put the lubricant on the reflective surface. DUH!

Be patient and wait over night. You can do it. It will not kill you to wait, I promise.

Tomorrow morning, try the same amount of effort that you tried today. This will usually do it.
IF that doesn’t work, you will have to try HEAT.

People will tell you that heat only works if you know what you’re doing. That is partially true. There are certain situations where the materials involved really matter. Like, reallyyy.

I’m going out on a limb and saying this isn’t one of them. Get your oven mitts ready.

Heat up the thing you want to make bigger, aka the outer threaded portion, aka the pill area, aka the finned copper.

That means you need something that can direct heat onto something. Like, not a campfire or a clothes dryer. Something like a heat gun or a propane torch (US version of the word, what the heck do you guys in the UK call it? I must know!) I usually use MAPP gas, but I’m running out of the real stuff and I’ve heard that the replacement is inferior. Use of heat will probably affect the finish on your light, but seeing that you just want a better beam that shouldn’t matter, right? Moving on Smile Smile Smile

What you need to imagine in your head while doing this is that heat makes things bigger, so the outer threads need to get hot, which will make the inner threads fit looser, and then you can twist them right out.

Note: Everything is going to get hot, just not as hot as where you direct the heat.

IMPORTANT: DON’T USE MORE HEAT THAN YOU NEED OR YOUR ENTIRE LIGHT WILL FALL APART!!!!! (Excessive? Maybe, but you think I want those PM’s?) It’s good practice to try a little heat and then twist. Use hand protection. Use eye protection. Use any kind of protection you can find. Don’t breath in unless you have adequate ventilation. Have a spotter. Make the spotter do it. What are friends for? Have a shovel ready. If anything goes wrong, deny deny deny.

Seriously though, good luck, be safe, don’t wreck your lights. Patience is #1.

myhken
myhken's picture
Offline
Last seen: 1 year 9 months ago
Joined: 07/03/2015 - 17:20
Posts: 549
Location: Norway

DB Custom wrote:
Saypat, great pics! VERY sharp, man don’t ya just love that knurling! Smile

Ken, you also have a nice shot there, those beauties really stand out in a crowd, even with their Al siblings. Sweet! Wink

tnx

Kenneth Myhre

onetrickpony
onetrickpony's picture
Offline
Last seen: 1 year 4 months ago
Joined: 03/17/2014 - 22:22
Posts: 388
Location: NH

Try hot water first. Take out the battery, make sure your o-rings are in place, dip the entire bottom of the light into very hot water until you can feel the heat in the pill, then use some of your amazing strength to unscrew the reflector.

myhken
myhken's picture
Offline
Last seen: 1 year 9 months ago
Joined: 07/03/2015 - 17:20
Posts: 549
Location: Norway
onetrickpony wrote:

It was not for me, but tnx for all the tips. I have nothing of the stuff you mention, so I have to buy it, and then I think I just buy a new Al set, since the price for the stuff will be more then a new set. But still, thank you.

Kenneth Myhre

myhken
myhken's picture
Offline
Last seen: 1 year 9 months ago
Joined: 07/03/2015 - 17:20
Posts: 549
Location: Norway
onetrickpony wrote:
Try hot water first. Take out the battery, make sure your o-rings are in place, dip the entire bottom of the light into very hot water until you can feel the heat in the pill, then use some of your amazing strength to unscrew the reflector.

Done that, boiling water. The whole thing got so hot that I had to use protection. Still, the reflector is stuck.

Kenneth Myhre

onetrickpony
onetrickpony's picture
Offline
Last seen: 1 year 4 months ago
Joined: 03/17/2014 - 22:22
Posts: 388
Location: NH
myhken wrote:
onetrickpony wrote:
Try hot water first. Take out the battery, make sure your o-rings are in place, dip the entire bottom of the light into very hot water until you can feel the heat in the pill, then use some of your amazing strength to unscrew the reflector.

Done that, boiling water. The whole thing got so hot that I had to use protection. Still, the reflector is stuck.

I said to use your amazing strength. Not your run of the mill stuff.

EDIT: I’m assuming that the protection you used prevented procreation, so I’m satisfied that my advice was heeded.

onetrickpony
onetrickpony's picture
Offline
Last seen: 1 year 4 months ago
Joined: 03/17/2014 - 22:22
Posts: 388
Location: NH

I think it’s safe to assume that those of us that modify cheap lights have spent far more on tools than things that produce light. LMAO.

scs
Offline
Last seen: 1 year 7 months ago
Joined: 11/06/2015 - 14:46
Posts: 147

I’m reminded of what my boss once told me, “Make the sample look barely passable. Otherwise, it will become the standard to which the client will compare the final product. Make the final product better than the sample and everyone will be happy.”

Ronin42
Ronin42's picture
Offline
Last seen: 1 week 1 day ago
Joined: 12/17/2014 - 22:17
Posts: 1760
Location: Alameda, CA
fogcreature wrote:
Ugh I’m sorry man that’s just awful. People make me sick sometimes I swear. Hopefully karma will catch up to them.

Karma (or Kamma) is not revenge, it is causes and conditions that produce results, we all have our own Karma, other folks have their Karma which will take care of itself, all we can do is to address what we are producing now, because that will be the part of the future that we can control.

Our futures catch up with us all, this is unavoidable, It is what we can do in the present that we have (some) control over. Smile

Sorry for the (almost) rant Smile

(“It’s good that most people can’t remember their previous lives. Otherwise
things would be a lot more complicated than they already are.”
Ajaan Lee Dhammadharo)

djozz
djozz's picture
Offline
Last seen: 17 min 27 sec ago
Joined: 09/07/2012 - 17:04
Posts: 15952
Location: Amsterdam

I have the yellow spot in my copper X5, and the reflector is stuck.

1) I'm not worried

2) I'm not going to return the light or complain

3) The emitter is fine (checked by projecting the emitter image with a projection lens), and in fact I think the yellow spot is the result of the reflector being really really good. Fine-tuning the reflector height is something I could try, but I quite dig the yellow center of the hotspot.

4) If I want that, I'm going to get the reflector out, I'll figure a way (I always do)

Kenjii
Kenjii's picture
Offline
Last seen: 9 months 1 day ago
Joined: 01/28/2013 - 05:46
Posts: 277
Location: Cologne, Germany

Hi,

the more i play with these lights the more i love the Bistro UI. Absolutly great! I set it to 5 modes + Moon and Memory. Very nice mode spacing, too.

Regards

Kenjii

hank
hank's picture
Offline
Last seen: 16 hours 52 min ago
Joined: 09/04/2011 - 21:52
Posts: 8150
Location: Berkeley, California

Cheap IR thermometers definitely don’t give good numbers on shiny surfaces (there are IR thermometers adjustable for emissivity, pricey though)
To make the infrared thermometer useful for checking shiny surfaces, you can, as suggested above, paint them (heresy indeed)

Easier, though — put on a patch of painter’s tape (the removable stuff). It wil get just as hot as the metal surface under it.
The infrared thermometer reading the tape will give you a decent result.

I understood why years ago, but I’ve forgotten; ‘oogle will remember.

UliBär
UliBär's picture
Offline
Last seen: 3 months 11 hours ago
Joined: 05/22/2013 - 16:08
Posts: 389
Location: N52° 16' 9.444" E10° 31' 26.105"

Hi there,

just want to inform that set #207 of 400 in 3B arrived in Germany! Smile

Man – what hefty and beautiful flashlights! This must be the king of the hill. The lights are in pristine condition, although they where heavily bouncing inside the box while in transit. You can clearly see the marks inside the box foam from rambling around. Luckily the lights did not touch each other, so they both are free from blemishes and simply look gorgeous! Smile Also the LEDs are very well centered and the tint is “just right” – a punchy strong neutral with only a hint of warmth. The magical UI from toykeeper is simply fantastic and the illuminated tailcap is an eye-catcher par excellence.

Now the downside:
The lights were packaged upside down! Shocked I think this is the main cause, why the lights left their places in the box. Also the packaging was “poor” to say at least. Nearly all corners are slightly “crunched” and unfortunately the long back edge of the lid got a heavy ding, nearly breaking the wood. Sad

But all in all i’m very impressed and already LOOOOVE these lights!
Big THANKS to everyone involved! Smile

Aloha, Uli

fatboy
Offline
Last seen: 8 months 3 weeks ago
Joined: 11/17/2012 - 08:18
Posts: 224
Location: MN

onetrickpony wrote:
I think it’s safe to assume that those of us that modify cheap lights have spent far more on tools than things that produce light. LMAO.

Thank you for reminding me to get a bigger flashlight tool box it’s getting to full! Wink If your going to take things apart you have to have tools Or call your mechanic,the maytag man or send your flashlight to your friendly flashlight modder.
Tom E
Tom E's picture
Offline
Last seen: 10 hours 5 min ago
Joined: 08/19/2012 - 08:23
Posts: 12328
Location: LI NY

Before you resort to boiling water or heat, I always try these gloves. I recommended them several times in other threads. Worked for me many times:

They are cheap, in my case I bought them at a local store. I even used them to break LockTite on threads in some cases.

fatboy
Offline
Last seen: 8 months 3 weeks ago
Joined: 11/17/2012 - 08:18
Posts: 224
Location: MN

Tom E wrote:

Before you resort to boiling water or heat, I always try these gloves. I recommended them several times in other threads. Worked for me many times:



They are cheap, in my case I bought them at a local store. I even used them to break LockTite on threads in some cases.


Yes those work good for me too.
DavidEF
DavidEF's picture
Offline
Last seen: 8 hours 8 min ago
Joined: 06/05/2014 - 06:00
Posts: 7671
Location: Salisbury, North Carolina, USA

Sharpie wrote:
hank wrote:
Cheap IR thermometers definitely don’t give good numbers on shiny surfaces (there are IR thermometers adjustable for emissivity, pricey though)
To make the infrared thermometer useful for checking shiny surfaces, you can, as suggested above, paint them (heresy indeed)

Easier, though — put on a patch of painter’s tape (the removable stuff). It wil get just as hot as the metal surface under it.
The infrared thermometer reading the tape will give you a decent result.

I understood why years ago, but I’ve forgotten; ‘oogle will remember.

Yes, was already going to do that.

Was hoping that the lacquer on the copper would be sufficient, but seems not.

Most household materials, foodstuffs etc. have high emissivity, my thermometer is calibrated for 0.95 ISTR.

But polished metals are tricky, particularly copper, which has one of the lowest. <0.05

http://www.engineeringtoolbox.com/emissivity-coefficients-d_447.html

One reason why copper kettles were so popular, they keep the water inside hot very effectively.

Frankly a polished surface to the copper head of these torches is the worst possible finish for radiating the heat away.

And the SS body is not a great heat conductor.

I expect the Al set to be much better thermally, but not so pretty.

Something to ponder.

PS: I can understand why the reflectors may be getting stuck on the Cu set.

I’ll be putting some suitable anti-seize compound on the threads, when I decide what.


About the copper shedding heat: I think copper is used in flashlights mainly for conducting heat away (from the LED mostly and secondarily from the driver). Shedding is expected to be done through physical contact with a human hand, not through any kind of emissivity. That being the case, this flashlight was not designed for easy reading with an IR thermometer.

Edit: Also, with the same considerations in mind, I will expect the Aluminum flashlights to be not quite as good thermally. That is, unless you will be leaving them tailstanding on a table for several minutes or longer (where emissivity is to be the primary means of shedding heat). Wink

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

Chicken Drumstick
Offline
Last seen: 3 days 16 hours ago
Joined: 08/27/2012 - 05:00
Posts: 2388
Location: UK

bugsy36 wrote:

There are not enough SS or Cu lights to be feasible to do a run of short tubes….. The minimum order would be too many.


Not sure I can personally see the appeal either. Having a short tube on a large headed torch doesn’t make it any more portable or pocket friendly (less so, as more tendency to tip if you carry it upright). All you’ll get is massively worse total runtime, likely lower PEAK output (depending on config) and certainly pathetic max output runtime.

Pages