Foursevens Preon P0

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Got Lumens? said:
square button cells is needed
Click to expand...
Eneloops arent square. You mean in its profile view?
the eneloop nub is a perfect cylinder. nothing square about it ;)
maybe someone wants to post a close-up of the Eneloop and the duracell nubs to show what the exact difference is.
 
I've been using my P0 with Eneloops from day one (didn't even know about this problem when I got it). It's still working fine with Eneloops after almost 2 weeks using it every night.

I have no idea if anything is wearing or about to short out, but so far so good.
 
I got mine today and I really like it. I bought other lights with the focused lens and didn't care for them with the small spot and no spill. This light has such a wide spot that it lights everything. Mine came with a spare o-ring. I think a rubber band from my daughter's braces might work as an o-ring. The magnet, holds the battery in, I have to shake it out. I have been using the same Sony Cycle-energy batteries for a few years and they works great. I love my Preon1 kit I bought when they came out and usually carry it in Preon1 form with the clip. I also carry a Maratac now and then but the battery doesn't last as long as the Preon.

I was wondering if anyone tried reversing the lens to see it it changed the beam? Also will the magnet mess with my cell phone or a thumb drive that might be in the same pocket?

Great light 4Sevens, thanks!
 
I've also wondered if the magnet will cause confusion
with my electronic devices.


i DO know the magnet will affect my Compass, unless i keep it ~20 cm away.

Quite a shame really, cuz' my P0 is quite Ideal for map-reading ! :thumbsup:


Gotta' love that Low Mode.

:kiss:
_
 
shelm said:
Eneloops arent square. You mean in its profile view?
the eneloop nub is a perfect cylinder. nothing square about it ;)
maybe someone wants to post a close-up of the Eneloop and the duracell nubs to show what the exact difference is.
Click to expand...
Yes Shelm that is what I meant, Thanks. Reworded to shoulder.
I have videos showing the differance in My Mini-review thread with updated photos, lux values, and some beamshots :thumbsup:
here's a couple low-res photo snapshots from them:

.
. . . Click to Enlarge. . . . . . . . Click to Enlarge

I will take some hi res photos later tonight.
GL
 
127.0.0.1 said:
because this is in the gift-light category and no one wants to be gifted a flaky light. like getting coal for christmas...

almost all similar lights simply -work-

no one wants to be locked into alkalines because eneloops have more benefits than simply 'being rechargable'
Click to expand...
I agree with you on the basis of the fact that the light should just simply work, but if the Eneloop problem was the only issue it would still make for an excellent gift light as most recipients would be likely to use alkalines anyway.
rdrfronty said:
However the thing about gift giving is that non flashlight people likely never heard of eneloop and would usually use energizer and duracells. But flaky lights certainly would be a poor gift. My light is working flawlessly, but I guess I'm one of the lucky 1/2 of the owners. Guess they are a hit & miss.
Click to expand...
Here's hoping for some solid solutions soon, as I'm still without one and waiting for better reliability reports before ordering.
 
Well, I received my second Preon P0. I'm not exactly sure when but I'm guessing it was delivered yesterday. I just checked the mail box today. I got the USPS First Class shipping notification on Thursday so I'm surprised it got here so fast. This is my second light because my first one was DOA. I contacted 4sevens on Monday, 2/6/12. They said they were currently waiting on another batch of lights as the first one was already sold out. They said they would ship the light out to me as soon as the new batch came in. I did not expect a replacement this soon! Now I feel bad because I have not yet sent back my first light. Oh well, I'll ship it tomorrow.

As expected 4sevens took care of the issue and in quite a timely manner in my opinion. I am quite pleased with the light now that I have one that works. The beam profile is unbelievably wide! It is a pretty unique light. It is still light out so I cannot comment on the moonlight mode quite yet. The modes switch fairly reliable for me. I get the mode I expect to get about 75% of the time. I suspect the black foam to be the culprit of this issue. However, I fear I may have broken my last P0 by using an eneloop in it I am not yet willing to try the light without the foam. I did remove the foam on the new light and everything appears to be identical to the previous light. It still appears that there is no room for the wider eneloop contact. It looks like this light will require primaries only. I find this surprising since so many of us use Eneloops exclusively(I do) and I really believe we(CPF) are the base for 4sevens. Anyway, the only noticeable difference between the first and second light is that the second light has a black o-ring instead of the clear one. The new light did include a second o-ring and this o-ring was clear so I guess the color means nothing.

All things considered I like the light. The size and unique beam are what make the light interesting to me. I think it would be a great gift light but at the moment I question it's reliability. I will have to put it on my personal keychain for a few months before I can consider giving the light as a gift. It is almost too pretty to put on my keychain! Almost...haha
 
Glad to hear you got your replacement so quick.

You can use Energizer lithium primary. Sold at your local market....... Great runtimes with them.
 
someguy4747 said:
Well, I received my second Preon P0. I'm not exactly sure when but I'm guessing it was delivered yesterday. I just checked the mail box today. I got the USPS First Class shipping notification on Thursday so I'm surprised it got here so fast. This is my second light because my first one was DOA. I contacted 4sevens on Monday, 2/6/12. They said they were currently waiting on another batch of lights as the first one was already sold out. They said they would ship the light out to me as soon as the new batch came in. I did not expect a replacement this soon! Now I feel bad because I have not yet sent back my first light. Oh well, I'll ship it tomorrow.

As expected 4sevens took care of the issue and in quite a timely manner in my opinion. I am quite pleased with the light now that I have one that works. The beam profile is unbelievably wide! It is a pretty unique light. It is still light out so I cannot comment on the moonlight mode quite yet. The modes switch fairly reliable for me. I get the mode I expect to get about 75% of the time. I suspect the black foam to be the culprit of this issue. However, I fear I may have broken my last P0 by using an eneloop in it I am not yet willing to try the light without the foam. I did remove the foam on the new light and everything appears to be identical to the previous light. It still appears that there is no room for the wider eneloop contact. It looks like this light will require primaries only. I find this surprising since so many of us use Eneloops exclusively(I do) and I really believe we(CPF) are the base for 4sevens. Anyway, the only noticeable difference between the first and second light is that the second light has a black o-ring instead of the clear one. The new light did include a second o-ring and this o-ring was clear so I guess the color means nothing.

All things considered I like the light. The size and unique beam are what make the light interesting to me. I think it would be a great gift light but at the moment I question it's reliability. I will have to put it on my personal keychain for a few months before I can consider giving the light as a gift. It is almost too pretty to put on my keychain! Almost...haha
Click to expand...
SomeGuy, Excellent story! I am glad they took care of you in such unexpected fast service :thumbsup:

Streamer said:
Glad to hear you got your replacement so quick.
You can use Energizer lithium primary. Sold at your local market....... Great runtimes with them.
Click to expand...
Streamer, ++1. I just got some Energizer Lithium AAAs, and they function flawlessly, within the current Preon0 specs.


**---> Anyone have some runtimes using the lithium AAAs?


toylover said:
How did you do that? Did you just dremmel out the GITD coating? Beam shot for the High setting please.
Click to expand...
Toylover, I did not post any beams of the high mode, because they appear identical. Here is the start link to thread where my posts are describing the modd and lux readings I took. Posts #199, 201, & 203.

GL
 
Got a replacement P0 in this weekend. Had to RMA my original one which gave out after about a week of use. The replacement is one of the "newer" batch models with the black o ring. Apart from that change, there doesn't seem to be much physical difference. I can say that the threads on my new model are noticeably smoother than my original, and I can easily activate and switch modes with one hand. On my original light, nothing short of a very firm two-handed twist would get it to turn on. The difference in feel was enough to surprise me. Not sure if this speaks to improved quality control, or if my original was just a bad apple.
 
jonnyfgroove said:
Lithium runtime graph from hiuintahs. :rock:
Click to expand...

If the thing will do over 5 hrs on high with a lithium primary, and specs from 4/7's say 120 hrs on low, based on an alky, anyone care to venture a guess on what kind of runtime you'd get on low with a lithium primary? Since the high runtime more than doubles over rated specs with a lithium, could we safely assume runtime on low would more than double to say, 240 hrs minimum? That's 10 days on low. Pretty respectable from a AAA cell.
 
mrlysle said:
If the thing will do over 5 hrs on high with a lithium primary, and specs from 4/7's say 120 hrs on low, based on an alky, anyone care to venture a guess on what kind of runtime you'd get on low with a lithium primary? Since the high runtime more than doubles over rated specs with a lithium, could we safely assume runtime on low would more than double to say, 240 hrs minimum? That's 10 days on low. Pretty respectable from a AAA cell.
Click to expand...

If stated runtimes are 1.5 hours on high and 120 hours on low with alkalines, then by direct proportion the primary lithiums (yielding 5 hours on high) would yield 400 hours on low. That would equal 16.6 days. at @.24 lumens. I hope so.
 
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Streamer said:
If stated runtimes are 1.5 hours on high and 120 hours on low with alkalines, then by direct proportion the primary lithiums (yielding 5 hours on high) would yield 400 hours on low. That would equal 16.6 days. at @.24 lumens. I hope so.
Click to expand...

Yea, that would be awesome! Thanks!
 
Streamer said:
If stated runtimes are 1.5 hours on high and 120 hours on low with alkalines, then by direct proportion the primary lithiums (yielding 5 hours on high) would yield 400 hours on low. That would equal 16.6 days. at @.24 lumens. I hope so.
Click to expand...
Alkaline sucks at medium currents and is nearly unusable at high currents. That's where the big difference comes from.
In moonlight mode, however, the difference will be marginally or alkaline might even be slightly better (at room temperature that is. low temperatures give litium another advantage, alkalines are useless in the cold).
 
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