Arc6 beta test

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Gransee

Flashlight Enthusiast
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Beta testing was performed earlier on previous versions of the Arc6 during development. This current test is with the latest Arc6 version.

The Arc6 beta testers:

CM
Cyclops942
Lebkuecher
NewBie
this_is_nascar

NewBie is no longer a CPF member (he's even more controversial than I am) but he did help with some testing and recommendations during the Arc6 development. In return for his contribution, he asked for an Arc6 flashlight. Since he is pretty good at testing and I was sending him a flashlight anyways, I figured "2 birds with one stone". His test results will either be published on his website or I will copy them here.

Each beta tester was sent the following:

Arc6 production head
NG sleeve
Guarded sleeve
2 Duracell's
Arc6 instructions
Arc6 display box

The firmware version loaded is "Release Candidate "A".

Beta Testers,

The focus of this test is to verify that the Arc6 performs reliably in normal use. This includes testing with different batteries, power levels, run time, switch activation, water immersion (less than 100 feet), drop testing (less than 6 feet), etc. You are not expected to perform each and every test but I would like you to use it quite a bit, become familiar with its character and reliability and not be afraid to write a report on your experience.

You may photograph the light and post photos. I do ask that you not publish part numbers or the electronic pattern of the PCB. This might be published later but for now I would like to keep it confidential.

If you find a problem with the light you are welcome to write about it on the CPF first or wait and email me about it. We will attempt to fix the problem before units are put up for sale. Preferably, we would like you to test the fix and verify it is indeed fixed. In the event we cannot fix the problem, then the customer will be notified of the errata at the point of sale.

The beta testers thread on the CPF is for you to post your observations and to answer reasonable questions from the CPF. I will start the thread, introduce you by your cpf id and outline the purpose of the test. You could then make a post letting us know you have started your tests, your observations so far, photos, tests you ran, etc.

Here's a list of things I have noticed in my tests:



Sometimes when cycling through the stages in the settings menu, the flash code is uneven in its timing. For example it may flash once slowly and then twice at a faster rate. This has to do with the timing precision of the microcontroller and is normal.

Sometimes, with some batteries, the light may flicker in its output. This seems to occur mostly with higher voltage rechargeables (especially with new rechargeables charged at 4.2volts or higher). It tends to go away after a minute or two of usage. It also tends to go away with older cells. This is caused by instability in the analog feedback loop and is a known issue. Other than occasional flickering, it has not caused any other problems.

Lower voltage cells tend to produce a higher light output. This has to do with how current is sensed by the electronics. This can be compensated by using a different level setting.

It is possible for the kilroy spring (part of the PD switch mechanism) to become bent flat enough for there to be no space between stage1 and stage2 switch activation. This can be fixed by bending the kilroy spring back up with your finger.

It is normal for the converter to hum or whine during operation.

Sometimes with a new battery, the light may noticeably ramp in brightness (ramping in less than a second) the first time a particular level is used. This is normal and is produced by a function in firmware that seeks the best converter settings for that particular battery/level combination. Sometimes this ramping also produces a momentary shift in LED color. Subsequent uses should be normal after the processor has adjusted to the new battery.

It is normal for the flashlight to get quite warm during extended use. However, the protection system should prevent it from going over 135F on its own.

Runtimes graphs are difficult to produce since the light may switch to a lower level due to temperature. Sufficient cooling or running the test in segments would be neccessary.

--

Thank you again beta testers!

Peter Gransee
 
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:popcorn:

Thanks for letting a bunch of well-respected CPF'rs (and Newbie :D) put the Arc6 through the wringer!

john
 
First I would like to thank Peter for selecting me as a beta tester.

I would like to start out with a little history, about two years ago when I attended one of our Phoenix GTs Peter pulled out a Laptop and showed everyone CAD drawings of what is now the Arc6. I and I believe everyone attending the GT became very excited as Peter explained the concepts and goals of this new project. As most people know there are few more committed to developing the perfect EDC and this enthusiasm showed as Peter went into details. I believe everyone attending the GT left feeling this light would be a winner and from what I can tell with what little time I have had with the light we where right. From that point forward it has really been something following the Arc6 as the light went thought the development stages. From the few "windows" I had to follow this project I can tell you every time I had a glimpse there was always Peter working extremely hard to get this project to market. I don't think most people understand the degree of commitment it takes to successfully pull a project off of this magnitude, I know I didn't. I believe this projects speaks volumes about Peter and his dedication to the industry.

I received this version of the Arc6 two days ago and have spent all of my spare time running the light through the paces but have also had to deal with a strong work schedule as well so I still have more tests to perform. The previous version of the light I had and the lights I help test at LSI did not have the updated electronics so the light I have now is truly a new light from my point of view.

When I first pulled the light out of the packaging I was truly struck by the quality and workmanship of the light. The Arc6 makes a very strong first impression when you first get the light. I really didn't know what to expect because it had been at least 8 months since the last time I handle one of the prototypes. The head and both bodies are cosmetically perfect with no cosmetic flaws in the anodizing. The head is slightly darker then both bodies but this is not really a big deal. The reflector is perfectly placed and lens and reflector are completely dust free and clean of any artifacts. The style and design are very pleasing to the eye and the light has a feel quality. When you remove the head and look at electronics you truly get an understanding of just how tight the light is designed. The size of the light is also very appealing both with the guarded and non sleeve. I tend to prefer the non guarded because my preference is to carry the light in my front pocket. Yesterday was the first chance I had to carry the light all day and I there was no problem at all. The tint of the LED is very good and perfectly white. I will post some beam comparison soon along with honoring any request for beam comparisons with any light I have.

Programming and using the light is pretty straight forward so I do not think anyone will have any problems here. I only had to read the instructions once to set all of the stages to levels I want. The flexibility of the stages is awesome and I believe everyone will be able to fine tune the stages to the setting appropriate for their needs.

The one characteristic I might change a little with the light and this is my personally preference is the amount of pressure required to activate and hold the light in stages 2 and 3 when engaging the tail switch. Some may find the pressure need to continually hold the light in the upper stages a little tiring to the hand. Of course I have cycled the light well over 400 times in the last 24 hours testing the light so this could have something to do with my thoughts.

As far as testing is concerned I have cycled the light several hundred times and have yet to see a problem. I have also submerged the light under water for over twenty minutes while operating the light and again no problems. I will start meter testing and conduct light testing comparisons tonight and over the weekend as time permits. I will also do some freezer test and increase the height of the drop tests. (Four feet is the max at this point because I don't want to kill the light before completing the other test)

So far and over all I am very impressed and I look forward to reporting back as I complete the test.

Steve




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Wow. That picture of the electronics is stunning, and does tell a lot about what went into the light. You other pictures also make it look much less like a "re-badged" PD than I was expecting, and I hope this pleases a few people. Thanks for posting this.
 
Nice photos! The only concern I have in seeing the Arc6 is one I have mentioned to Peter in the past and it may well be a non issue but worthy at least of consideration.

I have received PD's back from folks and the anode ball has been collapsed for whatever reason. The Arc6 is loaded with components on the exposed side of the PCB and the user needs to insure that nothing gets in or makes contact with areas that it shouldn't. This also means no messing around with dented or iffy batteries placed in the light.

To paraphrase a comment I have made before, if one wants to pass a reasonable judgment on the Arc6 they have to get past its cover!
 
McGizmo, did I tell you we are placing the ball on its open end and filling it with solder? We found it crushes less easily that way. You are probably the one who suggested we do that.

On several test units, I covered the pcb in epoxy to help protect them. However, it made them difficult to get to if I wanted to change a component. I also have not seen any problems so far with just letting everything hang out au natural. We shall see.

Thanks Lebkuecher. Informative post and good pictues. Happy testing!

peter

ps. just thought of this. The piston in the Arc6 is nickle plated Aluminum. The original PD was nickle plated brass. Switching to AL made it trickier to find someone who could plate it but it did reduce the weight of the piston by 2/3rds. 2.15 oz with a battery... :)
 
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Peter,
With the ball filled as you are doing, I see no reason to be concerned about it compressing. The compressed contacts I saw were all a case with a hollow void in the ball. Cool. As to the au natural, I think with proper consideration and care during battery exchanges, there is no cause for any real concern.

Non issue. :eek:
 
I can't believe I'm still up (it's almost one in the morning) to write this but I need to get my first impressions down before I forget. I just got back from meeting with Peter and Cyclops942 about an hour ago, I'm tired, so bear with me.

I also have a previous beta firmware that I've been using for a while and it was one that had some amount of flicker which most people would probably not notice but there's a lot of whitewall hunters around here. I know Peter spent many hours worrying about this and trying everything to squash the problem. I was concerned after getting my new firmware tonight that it might not have been improved. Well I just tried combinations that really brought out the flicker on the old version and I'm glad to report that the problem is fixed.

After getting home tonight and testing it against my brightest two lights (KL6 with Cree Q5 at 1.2A and Seoul P4 driven at 1.3A) the Arc 6 is now the brightest LED light I have in my possession, even at Level 6. Level seven is even brighter but it will kick the thermal cut off in a few minutes. I've had this thing for only a few hours but I can't put it down. If you look at the claims that Peter will make about the output, the typical CPF'er will probably pass. But don't make the mistake of comparing his numbers to the likes of other manufacturers (like 180 lumens for 5 hours on a single 123 blah blah blah) Peter is still very conservative in his rating but the test results he showed me and Cyclops942 shows that this is the brightest light among it's 123 powered peers. Those 180 lumen claims from the competitors are lies, lies and more lies and a side by side with the Arc 6 proves it to me. Arc has them beat in the sphere and in real use. The output still blows me away as I type this.

Now the bad. I agree with Lebkuecher that the pressure required to activate is a bit high out of the box. You can make adjustments to this to get it to turn on with a hair trigger but right out of the box, you'll probably want to make some adjustments to the kilroy. Fortunately, this is easy to do. I have not evaluated the features of the release candidate firmware but I'll spend time in the next few days checking it out. I have verified that the light's thermal protection is functional, and that the low battery step down works correctly.

I would like to make a commentary here. The amount of data that Peter has taken on this light and the competitors would make your head spin. He probably knows the competitor's lights better than they know themselves. Peter put in a lot of work to make sure he understood the competition. The results of all that hard work is embodied in the Arc6. The light in its current form is light years away from the initial beta units I evaluated.

The Arc6 is finally ready for prime time.
 
...The original PD was nickle plated brass. Switching to AL made it trickier to find someone who could plate it but it did reduce the weight of the piston by 2/3rds. 2.15 oz with a battery... :)

This is one thing I'm starting to notice. Compared to other single cell lights (including AA's) the weight difference makes a big difference. Unlike the other lights, this one does not pull my pants down when I'm not wearing a belt :D
 
As appreciative as I was when asked to beta test the Arc4, being asked to test the Arc6 really caught me off guard. If you've kept up with the threads, you'd know that the Arc6 never really got me hyped at all for a variety of reasons. I won't get into the particulars here. They're scattered throughout the forum, so you shouldn't have too much of a problem finding them if they interest you. That being said, I can only expect that Peter really values my opinion, knowing that I'll tell it like it is. For that, I'm extremely appreciative. I'm actually looking forward to putting the Arc6 through it's paces and can't say thanks enough for the opportunity. I really mean that. I was shocked and extremely grateful. It gives me a good feeling. Due to some confusion/issues/etc with shipping, I still have not received my beta unit. With any luck, I should see it on Tuesday.
 
Before I forget... many 1x123 lights don't operate down to 1.7volts like the Arc6 does. Last night with the guys over we were reminded of this by accident when I put a dead duracell in a fenix p2d and it didn't light up. Thought there was a problem with the flashlight. Put the cell in the Arc6, lit up no problem.

peter
 
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