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Tom Kirchner
(ouzel) - MLife

Locale: Pacific Northwest/Sierra
Re: Princeton Tec EOS on 05/30/2009 18:09:29 MDT Print View

I feel the same way about my "old" EOS. Couldn't ask for more, but I am still drooling at the prospect of upgrading to 50 lumens at the first excuse. :)

Roger Caffin
(rcaffin) - BPL Staff - MLife

Locale: Wollemi & Kosciusko NPs, Europe
Re: PETZL warning on 05/30/2009 18:56:10 MDT Print View

> Virtually all "mini" headlamps will be unregulated as the heat sink. etc. for regulation
> would make it too big to be mini.

Not true.
If you want to use a cheap linear regulator then heat sinking is an issue. That is quite inefficient.

But if you use a switched-mode regulator then heat sinking is emphatically not an issue, and the efficiency is much higher. All my *little* lights are fully regulated. None have heat sinks.

The problem is that many of the headlight companies are more concerned about visual appeal than efficiency, and are definitely mainly concerned about cheap-cheap-cheap production costs. Sadly, switched-mode circuits are dearer.

My little Photon Rex is fully regulated. Very cute. And rechargeable too.


Matt DeWitt
(tritan) - F

Locale: Midwest
lights. on 06/01/2009 19:45:27 MDT Print View

Decided to take a closer look at the Fenix lights but what is there true website. or There are so many lights is almost confusing . I like the idea of a single AAA or AA with the white diffuser tip for the tent.

Sam Farrington
(scfhome) - M

Locale: Chocorua NH, USA
best flashlight on 06/01/2009 19:53:14 MDT Print View

I dismantled a Black Diamond Orbit, so only the battery chamber, diode and diode cover were left. Then drilled two small holes in the battery compartment cover for a very light cord loop. Since it takes AAAs, I can use AAA lithiums, which are readily found at Walmarts. The light quality is very good, much better than the best hang light I had before (a heavier European light called "Clip Light.")
It is great as a flash light, or tent hang light, weighs only a couple ounces, is small, and puts out much more light than the minis.
Sam Farrington, Chocorua NH

Matt DeWitt
(tritan) - F

Locale: Midwest
I like it. on 06/01/2009 20:14:38 MDT Print View

I have been looking at the Fenix site all night and torn between the LD10 and LD01 AAA vs AA . I do like the Idea of the diffuser but don't know if it will work with the LD01 model.Fenix LD01LD10

This special edition looks neat I don't know the price tho.SE

Adrian B
(adrianb) - MLife

Locale: Auckland, New Zealand
Re: Re: Princeton Tec EOS on 06/01/2009 21:54:44 MDT Print View

>BTW, what IS the lightest regulated headlamp? PT Quad?

Perhaps one of the Zebralights. My H501 is 59g (2.1oz) including one lithium AA. But it's only good for task lighting, the beam is floody with no throw.

Lightest is getting a regulated AAA torch (less than 1oz) and clipping it to your cap.

>here in NZ usually start with 2-4hrs tramping on Friday night and so far after going through 24 different headlamps, the new 50 lumen model of the Princeton Tec EOS is IMHO pretty near perfect.

4 hours on Friday night, good effort ! I usually don't get much further than the car. Yeah if I had to have one light, the new EOS would probably be it.

But this winter for night walking I've gone for a combination of two lights - a Fenix LD10 (AA) and a Zebralight H501 (AA). I prefer a handheld with lots of throw for hiking (offset from head for shadows), while keeping the Zebralight on low lets me see my while I'm needing to use my hands, and I can look down and see my feet and the ground while I'm walking. Plus it's a great camp head lamp, nice smooth floody beam gives you a very natural light.

Combined weight is 127g, including 2 lithium AA's, so it's a bit of a luxury. But a single light means compromising in one way or the other, plus.. don't drop it!

John S.
(jshann) - F
Re: Re: Re: Princeton Tec EOS on 06/01/2009 22:04:32 MDT Print View

Adrian, what happened to your liteflux LF2?

Adrian B
(adrianb) - MLife

Locale: Auckland, New Zealand
Re: I like it. on 06/01/2009 22:04:43 MDT Print View

>I have been looking at the Fenix site all night and torn between the LD10 and LD01 AAA vs AA . I do like the Idea of the diffuser but don't know if it will work with the LD01 model.

If you plan to be using it more than just occasionally, I would suggest LD10: clicky switch is easier to use, AA battery lasts longer. Also if you ever carry a GPS it will most likely be AA powered, which means you can share batteries.

Of course, the folks over on candlerpowerforums would just say, get both (or maybe two of both).

>This special edition looks neat I don't know the price tho.

You don't want it, the stainless steel is a lot heavier than the aluminum

Adrian B
(adrianb) - MLife

Locale: Auckland, New Zealand
Re: Re: Re: Re: Princeton Tec EOS on 06/01/2009 22:10:53 MDT Print View

>Adrian, what happened to your liteflux LF2?

It's still here on my desk :) A single AAA light just isn't quite enough when it's dark 14+ hours a day... or so I told myself :) When the days get longer again I'll switch back to it to save some weight.

Adrian B
(adrianb) - MLife

Locale: Auckland, New Zealand
Re: Re: Re: Re: Re: Princeton Tec EOS on 06/01/2009 22:31:23 MDT Print View

Actually, the LF2 *would* do fine, just that it is somewhat of a compromise: it's twisty rather than clicky, which isn't as quick to adjust as the LD10. And clipped to a cap brim, it isn't as convenient as a true headlamp like the Zebralight (eg hard to turn on/off/adjust, lanyard gets in the way), and you have to muck about with diffusers to get the same excellent flood as the Zebralight. Plus, once you start having to carry extra batteries because of the extra hours of light you need, the extra weight of two aluminium AA bodies is less significant. Finally I like the redundancy, for times when a light failing/getting lost would be very unpleasant. eg I had to abandon a slighty 'experimental' campsite when a storm rolled in in the middle of the night.

...all that to justify +100g to myself ;)

Mark Verber
(verber) - MLife

Locale: San Francisco Bay Area
Re: Best flashlight on 06/02/2009 00:40:49 MDT Print View

I would add a vote for the PrincetonTec EOSR. The updated EOS addressed the two flaws (to narrow a beam for around camp, and the low was too bright) of the original EOS. The EOSR providing a great beam with decent regulated runtimes. I also have liked the Fenix L1D and used it for the last two years. The EOSR has been my goto light since I got one for my birthday. Few more ideas on my recommended flashlights page.

Nick Gatel
(ngatel) - MLife

Locale: Southern California
Re: Best flashlight on 06/02/2009 01:51:45 MDT Print View

I have to go with the Photon II. It is the same weight as that spare AAA battery you folks are carrying. On a long trip I might carry a spare Photon II. I like these things so much, I gave away about a dozen of them last year as Christmas presents.

Normally I do not like to hike at night. The exception is in the desert and hopefully planned when there is a full moon.

I don't need a light often, because I am sleeping when it is dark. The exception of course is in the winter. I probably do more winter hiking than most folks, because I live in the desert, and great hikes are less than an hour from my house. In the winter I take a Photon II and a Petzl e+ lite. I use the Petzl to read at night, and sometimes cook dinner. I take something to read in the winter, because it gets dark at 5pm. In the summer, no book.

David T
(DaveT) - F
. on 06/02/2009 02:21:51 MDT Print View


Edited by DaveT on 05/17/2015 22:00:00 MDT.

Nick Gatel
(ngatel) - MLife

Locale: Southern California
Re: verber. on 06/02/2009 03:09:38 MDT Print View


John Carter

Locale: Pacific Northwest
Re: Re: Re: Re: Re: Princeton Tec EOS on 06/02/2009 10:35:32 MDT Print View

"A single AAA light just isn't quite enough when it's dark 14+ hours a day..."

Depends on how you look at it. The EOS lasts approx 3x longer than the LD01, but it also has 3x the batteries (these are vague estimates). So in terms of efficiency it's really a question of whether you want to store the batteries inside the light or outside, and how often you like to swap out batteries in the dark.

For a multi-hour hike in the dark, I agree the EOS is the way to go. But I have found that, for most of my 3-season trips I am in camp before nightfall, and so I felt I wasn't getting enough use out of the EOS. I'd use it for a few minutes here and there. Problem is I'd end up starting a hike with half of the battery left, and so I'd need to bring 3 extra as backup. Or, if I've got a longer trip, I'd swap out the half empty with fresh ones, and then come back with two half-empty sets and have to remember to keep them organized while in storage.

What I'm getting at is that the EOS forces you into 'quantum storage,' where you are working with 3 sets of batteries at a time.

The beauty of the LD01 is it's versatility. Since it only uses 1 battery at a time, I just start a trip with whatever juice is left in the current AAA cell. When I'm done with the trip, I only have 1 battery that is not at full capacity, and that is the battery in the flashlight. This has really simplified my storage and planning of battery use.

It also means that for a shorter trip, or when the nights are short, I can bring just the LD01 and two batteries. For the EOS, assuming you always bring a backup set of batteries, especially if you start with partially used batteries, this means bringing the EOS and 6 batteries. With Li batteries, that's a difference in weight of 3 oz!

The downside of course is that you have to replace the battery 3 times as often.

Also keep in mind, though, that the LD01 can put out a full 30 lumens MORE than even the new EOSR. That's a substantial difference, and when I tested my old EOS and my LD01, the LD01 was substantially brighter.

I will admit, though, that carrying a AA GPS is a good reason to get the LD10. That's why I'm so disappointed there are no high-sensitivity AAA GPSs out there!

Edited by jcarter1 on 06/02/2009 10:36:47 MDT.

Matt DeWitt
(tritan) - F

Locale: Midwest
Re: Re: Re: Re: Re: Re: Princeton Tec EOS on 06/02/2009 18:50:05 MDT Print View

people keep saying EOSR I only see the EOS and EOS II is the EOSR the same as the EOS II ?EOS II

Ashley Brown
(ashleyb) - F
zebralight! on 06/02/2009 19:05:13 MDT Print View

Like John, I dislike having to deal with 3 batteries in a lamp.

One option I'm thinking of getting is the new Zebralight H-501-W which takes a single AA battery. I love things that use a single AA. Plenty of battery life, and a single AA only weighs 16g (0.6oz).

Here are the runtime specs...

Light Output: Constant ratio output level spread. Current regulated.

* 80 Lumens (2.3 hr) on High
* 15 Lumens (19 hr) on Medium
* 2.7 Lumens (3.5 days) on Low

Light output and runtimes are measured using a Sanyo 2700 mAh NiMH battery.

Weighs 21g without battery, about 40g with battery. Pricier than most though at $59.

The other nice thing about this light is that it uses a CREE bulb with a warm tint... so you're not getting the 'cold' light you get with many LEDs. There's a non-warm version too though if you prefer it.

Edited by ashleyb on 06/02/2009 19:05:46 MDT.

Adrian B
(adrianb) - MLife

Locale: Auckland, New Zealand
Re: zebralight! on 06/02/2009 19:12:51 MDT Print View

I keep meaning to get around to posting my review - it's a great light, but the 80 degree flood with no hot spot (no throw) means it's not good for night hiking.

Eric Blumensaadt
(Danepacker) - MLife

Locale: Mojave Desert
EOS Tactical on 06/02/2009 19:53:09 MDT Print View

I cracked the lens on my PT Quad. I dunno how B/C those are tough lenses. Super Glue seems to have fixed it W/O changing the beam characteristics.

Anyhow I ordered a PT EOS Tactical (has a sliding red lens cover) for preserving my night vision when necessary - as in waking up at O'dark thirty in the morning to see what's making that noise outside my tent.

Doubtful I'll take the EOS on tough trips due to its weight, even with lithium bateries. Tough trips means my little coin cell headlamp goes along.


Ashley Brown
(ashleyb) - F
Re: Re: zebralight! on 06/02/2009 20:13:01 MDT Print View

Hi Adrian,

How far does the light spill forward on medium? I imagine that even though you wouldn't be able to spot blazes on trees ahead of you, it would light up the area in front of you pretty well?

I don't really do night-hiking so I just want something for around camp and emergency use. Because there are usually two of us, something that has a reasonably wide spill and puts out plenty of light when necessary is what I'm looking for. Don't need to see more than about 3m of 'throw'.