Foursevens Preon P0

[jonnyfgroove]

We still don't know what was changed with this "update"?

[Jimbo75]

It is quite likely that you received an updated specimen, however please bear in mind that for some of us the problems with Eneloops did not start immediately but after a few days of use.

Good to know, I will report back here if anything changes.

[shelm]

How does the magnet behave when the P0 is attached to a bunch of keys?

i have glued a 10mm neodymium round magnet in the tail of another 1xAAA keychain torch. All keyrings would get attracted by the magnet and clumped together. So how about the P0's magnet?

[Got Lumens?]

Hey everyone,
Great News, The current Preon0 version that is being shipped works awsome !!!
They have made ten revisions to the original first run. I have a video review that I will be posting in a week or so after further testing, but here are the highlights and my findings.

1) Eneloops Now work flawlessly ! (& square shaped annoded batteries)
2) Increased the height of the center positive driver contact 0.25mm
3) Plated the center positive contact to provide better contact and wear resistance.
4) The High Resistance opens between the driver pill and head are gone. (further testing to confirm)
5) Added two full threads thickness to the pills body.
6) Flared the last two threads ends outward to add pressure against the head
7) Incorporated a copper strip into the pill body for greater conductivity with the stainless head
8) Added a positive stop for the pill to screw down against tightly
9) Changed the foam on the top of the driver pill to rubber.
10) No more particals of foam to clog the threads
11) They now include a spare oring
12) The bottom of the battery tube is now free of burrs that scratched negative battery contacts
13) Consistant trouble free and easier one handed operation (further testing to confirm)
14) No more mode level skipping (further testing to confirm)
15) Added Oring groove seperation ring between threads and groove (Credit Cave Dave)

GL

[Sno4Life]

Hey everyone,
Great News, The current Preon0 version that is being shipped works awsome !!!
They have made nine revisions to the original first run. I have a video review that I will be posting in a week or so after further testing, but here are the highlights and my findings.

1) Eneloops Now work flawlessly ! (& square shaped annoded batteries)
2) Increased the height of the center positive driver contact 0.25mm
3) Plated the center positive contact to provide better contact and wear resistance.
4) The High Resistance opens between the driver pill and head are gone. (further testing to confirm)
5) Added two full threads thickness to the pills body.
6) Flared the last two threads ends outward to add pressure against the head
7) Incorporated a copper strip into the pill body for greater conductivity with the stainless head
8) Added a positive stop for the pill to screw down against tightly
9) Changed the foam on the top of the driver pill to rubber.
10) No more particals of foam to clog the threads
11) They now include a spare oring
12) The bottom of the battery tube is now free of burrs that scratched negative battery contacts
13) Consistant trouble free and easier one handed operation (further testing to confirm)
14) No more mode level skipping (further testing to confirm)

GL

Amazing job, foursevens! It takes true commitment to quality and humility to take what was a good product and improve it so quickly based upon feedback from the end-users. Awesome!

[Got Lumens?]

How does the magnet behave when the P0 is attached to a bunch of keys?

i have glued a 10mm neodymium round magnet in the tail of another 1xAAA keychain torch. All keyrings would get attracted by the magnet and clumped together. So how about the P0's magnet?

Hi Shelm,
It acts like glueing a 7mm neodymium magnet to the light .
It has been said, and I have tested this on one of my samples, that if you heat the magnet with the blue part of a lighters flame, it will demagnetise the magnet. Being that the Preon0's magnets are press fit into the tail, it's a non-reverseable mod . Your other option would be to get a titanium keyring and only use brass keys
GL

[JulianP]

Hey everyone,
Great News, The current Preon0 version that is being shipped works awsome !!!
They have made nine revisions to the original first run. I have a video review that I will be posting in a week or so after further testing, but here are the highlights and my findings.

1) Eneloops Now work flawlessly ! (& square shaped annoded batteries)
2) Increased the height of the center positive driver contact 0.25mm
3) Plated the center positive contact to provide better contact and wear resistance.
GL

So, the edges of the centre positive battery terminal won't chew through the ICs anymore? I am tempted to buy again as soon as I see a photo of the P0 Pill v2.0

[Got Lumens?]

So, the edges of the centre positive battery terminal won't chew through the ICs anymore? I am tempted to buy again as soon as I see a photo of the P0 Pill v2.0

Julian,
I took some video. I did measure the contact height as increased by 0.25mm, and also electroplated (Gold?). I will see about getting those shots for you tommorow.
GL

[jonnyfgroove]

Thanks for the info GL. What a joke for those of us who bought the first version. Glad it was only 20 bucks..

[CarpentryHero]

Now if they could make a Nichia Hi Cri version, I'd be buying more

[ragweed]

I am going to wait for more feedback before I order one. Sounds promising so far but, going to hold off until the full jury comes in with the verdict.

[cave dave]

Got mine on Sat. Works great on eneloops, I have not had a mode skip yet.

I also noticed:
Change #15: O-Ring is in its own separate groove now.

[Got Lumens?]

Got mine on Sat. Works great on eneloops, I have not had a mode skip yet.

I also noticed:
Change #15: O-Ring is in its own separate groove now.

Dave,
I will take a few close up photos of that for you when I do some shots tonight. That groove was there in v.1.1, but they have stopped the threads and added a solid ring between the threads and that groove. Nice observation
GL

[Got Lumens?]

A couple of pics. Detailed review coming next.
GL

.

[bob_ninja]

Got new one as well. Using it for about 2 weeks with a Duraloop, no issues of any kind.
There is clearly protection for circuits as you cannot see them, covered by some sort of protective material.
Also I don't see any damage on negative side, but I don't tighten too much.
Finally cell comes out easy enough; just need a little shake due to the magnet.

I can say after revisions this is exactly what I have been waiting for .... a long time, lost track how long
Anyway great utility light, for sure.

[JulianP]

A couple of pics. Detailed review coming next.
GL

.

Thanks, that looks a lot better. I emailed 4Sevens again, asking whether I could buy a new pill for my dud P0. I had no response. It has been 7 weeks since my initial request, and I am still really trying hard to become one of their fans.

[Got Lumens?]

Heres The change Video.
GL


. . . . . . Click to View

[KarstGhost]

Huge props to 4sevens for listening to feedback and improving their product, will be ordering some of these soon!

[Ishango]

Huge props to 4sevens for listening to feedback and improving their product, will be ordering some of these soon!

Definitely good to hear 4sevens to listen to the feedback and act on it. I got one of the earlier models and have a few minor ignoring glitches like the mode switching not working properly (not enough to send it back due to costs and not good enough to 100% love this light). I'll order a new one next month or so when my next payroll comes in to get a proper working version. I love each light of 4Sevens I own and love to see what the future brings. Good to hear they take care of their customers.

[JulianP]

Thanks, that looks a lot better. I emailed 4Sevens again, asking whether I could buy a new pill for my dud P0. I had no response. It has been 7 weeks since my initial request, and I am still really trying hard to become one of their fans.

Well, not only did I get a response! Today I received a replacement Preon P0 V2.0 at no extra charge. I have been converted to one of their fans, so now off I go to their website to order some of their High CRIs. I just need to choose between the Preon 1 and the Quark MiNi AA.

[Flying Turtle]

This is indeed good news. I might just have to add another. Thanks to 4Sevens for getting this fixed, and to Got Lumens for pointing it out.

Geoff

[Jimbo75]

Well, not only did I get a response! Today I received a replacement Preon P0 V2.0 at no extra charge. I have been converted to one of their fans, so now off I go to their website to order some of their High CRIs. I just need to choose between the Preon 1 and the Quark MiNi AA.

Some overseas companies shy away from dealing with warranty issues in Australia(or just overseas), good to see 4sevens committed to good service beyond the US. It can only help their international sales seeing responses like this.

[Streamer]

Well my version 1 pooped out. Let it sit for couple weeks and started misfiring, wouldn't go into high mode....a complete dud. Wonder if they will replace it with new version 2?

ETA: Fired an email to Foursevens. And from what I've read here, I'll prob need an RMA. I too tried some work arounds and most likely voided the warranty. It still works, but is spotty with misfires and no high modes without heavy heavy twist. Will not run on Eneloops.

Hope it works out.

[Streamer]

If you have issues please contact our customer service for resolution.

Dave, I returned my P0 today:

RMA#

15476120120511RP
The work around with the solder blob lasted til it wore down...now back to contact problems. TIA

[gcconspiracy]

Well, after reading this thread I was excited and skeptical at the same time. But after hearing about the revision, I finally ordered one (my first ever flashlight purchase at that!). It is on back order, but I should get it before too long. Very excited for this light!


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[shelm]

It is on back order,

very good sign imho. could be the 2nd sales wave, people like you now hopping off their fence. Preon P0 revision 2, way to go!!! And good luck 4sevens with the car racing, exciting videos on youtube sent from my iphon using tapatalk

[Kilovolt]

Although since I started using L92 primary lithium cells my P0 v.1 has behaved quite well I have decided to buy also a v.2 to make the comparison myself. It has been shipped yesterday.

[gcconspiracy]

very good sign imho. could be the 2nd sales wave, people like you now hopping off their fence. Preon P0 revision 2, way to go!!! And good luck 4sevens with the car racing, exciting videos on youtube sent from my iphon using tapatalk

Actually I did not order directly from 4sevens, so it is more likely just the specific retailer who is sold out...


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[Got Lumens?]

Actually I did not order directly from 4sevens, so it is more likely just the specific retailer who is sold out...
Sent from my iPhone using Tapatalk

$22.99 Shipped from 4sevens.com with discount
GL

[gcconspiracy]

$22.99 Shipped from 4sevens.com with discount
GL

I was unaware of any available discount. But I actually got it for slightly less ($22.00 with free shipping)!