I want a new headlamp

The Zebralight H51 is what I'm using now and it's sweet. It meets your criteria except I'm unsure if it's light enough for you. It sounds like you want the light including batteries to weigh about 1.5oz, which is a pretty tall order since a single AA battery weighs about an ounce. To hit 1.5oz inc. batteries you'd probably need to look at a coil cell light or maybe a single AAA light, but then you're never going to hit 100 lumens of output. Maybe you meant you want it to weigh 1.5oz not including batteries?

Anyways, the H51 main light is 1.3oz, but then you've got the strap 0.8oz and one AA battery (0.9oz) for a total of 3oz right on.

Zebralight H51
– single AA
– 200 Lumens on high
– flood type beam (80 degree spread)
– waterproof
– voltage regulated
– $64
– headlamp, but it comes with a clip also if you want to use it without the strap

I've been using one running,4-5X week at 5AM, this winter up here in the Northeast. Not superlight, but the lumens and light it throws are perfect (sorry I'm not technical). Battery life is good as well. The only negative is the strap that I replaced with my Tikka Plus strap.

Ray

Me too and so do others I know. They don't get much lighter and only uses one AA.

No problems yet. I find I hike on the mid setting, read on the low setting and search for lost stuff in the dark on the high setting. The single battery really lasts this way.

To me, headlamps are just commodities – different manufactures make equivalent units

Princetonetec Fuel – 3xAAA – 2.9 ounces – 2.5 ounces if you use lithium – but only 43 lumens – which I find enough to walk on trails at night

the lumens are misleading – you get that rating with fresh batteries but it gradually goes down and by the end of the "burn time" it's much fainter

Don't mean to pile on the love parade, but I recently got one too and have been impressed. Nice small form factor, light weight, and most importantly, a very usable spread of 3 settings. Low is actually LOW (for reading), medium for everything else, high for when you really need it. I'm really happy with this light.

I also like my Fenix LD01, with the penclip to hook onto a basebill cap brim. Another quality light.

The Zebras are nice, though pricey. I bought a PT Byte. Red led also. 2 AAA batteries nice clean beam. 1.9oz w/lithium batteries.$20.

Update: As Jerry notes below this light is fraught with problems. I received my warranty replacement and it too is a POC. Good thing I bought at REI. Bad thing the nearest one is 3 hours away. Bought a Zebralight H31W. Like it very much so far.

Be careful with the PT Byte

I found that after 4 hours on low or 1 hour on high, if you turned it off and then back on, it went into this weird mode with a faint strobe light and it wouldn't respond to the switch anymore, the only way to turn it off is to remove the batteries.

Then, after the batteries sit over night and recover some voltage it'll work again for maybe another 4 hours on low or 1 hour on high before the battery voltage gets low enough it won't recover overnight.

An alkaline AA battery weighs about 0.85 oz., and lithium AA is lighter. An alkaline AAA battery weighs about 0.27 oz.

Either one, two, or three AAA batteries still add up to less than an ounce. So, it must be the weight of the head strap that is the problem. Mammut seems to have a thinner/lighter head strap, but it's crazy to buy two or three headlamps and cobble the various parts together to get a whole unit.

I could have the lamp surgically implanted on my forehead, but then changing batteries would get messy.

It appears that my search must continue.

–B.G.–

I'm not aware of any headlamps that use one or two AAA batteries and output a high-ish amount of lumens, so I think you are pretty much stuck with 1xAA or 3xAAA at time present. I prefer 1xAA because the weight and energy capacity is about the same, but using one battery is simpler and more compact. With the H51, changing the single AA battery is so easy I usually don't take the headlamp off. No messing around with complex polarity in the dark.

So basically short of using a low powered coin cell or single AA light, you're looking at carrying an ounce of batteries. Lithium batteries would drop this a bit, but they're really expensive to use on a long term basis. I use high end NiMH for everything I can. It quickly becomes cheaper than alkaline and for longer trips it's much lighter too, because a NiMH battery weighs about the same as a Alkaline battery but it holds far more energy.

The lightest headband I'm aware of, not counting the string on the Petzl Zipka, is the Petzl e+Lite. This thin headband works fine for the e+Lite, but I imagine it would be insufficient to hold a headlamp that contains an ounce of batteries. So you end up at the situation where you need a heavier headband to support the heavy battery, and if you could solve the battery weight then you could also solve the headband.

My guess it that assuming you are carrying 1xAA or 3xAAA, the lightest possible light would be about 0.5oz for the body and 0.5oz for the strap, for total around 1.8oz with batt.

One option for you to consider is the Zebralight H501 (as opposed to the H51). The body is much lighter (0.74oz vs. 1.3oz) but it still utilizes the same 0.8oz strap, so with an alkaline battery you come in at a claimed 2.2oz versus 3.0oz. The H501 is a very floody light (80 degree flood with no hotspot) as opposed to the H51 (80 degree flood with 11 degree hotspot) and it's less bright (96 lumens on high vs. 200). It saves weight through less fancy circuitry and a smaller size due to the simpler electronics and beam reflector. Giving up the hot spot might be a problem though, as 96 lumens spread evenly over 80 degrees won't reach that far.

Dan, the advantage of the 3xAAA solution over the 1xAA solution is that three batteries give you enough voltage to drive the LED directly, so there is no chip for voltage boosting. That is also the disadvantage, since a PWM boost circuit will allow the LED to be driven much brighter. Using a CR123 battery gets around the voltage problem with a single-battery solution, but I am not crazy about CR123 batteries. I may end up there anyway.

There is little point in going after any change at all unless I can drop 1.0 or 1.5 oz., and I think the elusive target is around 1.5 or 2.0 oz. total.

I may explore MYOG strap materials.

–B.G.–

I decided to upgrade my flashlights and after a lot of consideration decided to go the cr123 route. I am SO glad that I did. They can be purchased in bulk at a fraction of the price you see them in stores. I would never return to the AA format.

I've also heard that cr123 batteries are best in non-rechargeable format.

The Zebra headlamps get good reviews although, if memory serves me, there was some concern about water infiltration. Maybe the problem has been corrected.

Everything you could ever want to know about headlamps or flashlights can be learned at Candlepowerfourms.com. It is the best source for this information on the internet.

More useful:

The 51 or the 51f?

I generally like the (f)lood beams (especially for reading or cooking), but every once in awhile the hotspot (usually on high when trying to spot a distant object) is useful. Opinions?

I'd say get the H51 over the H51F. The H51 is already more floody than any other headlamp I've used and if you get the H51F then you're giving up the hotspot which really adds a lot of distance to what you can see.

Like everyone said… The battery sure seems to last quite a while. The Middle setting is the best. I think it lasts 39 hours on a AA battery. Pretty amazing.
I will be taking this on my 2011 PCT hike. Good luck

I moved from a Princeton Tec EOS to the Zebralight H31w (pretty much the same as the above references to H51 except the H31 uses the CR123). The H31w with battery and headband is 2.6 oz and thus is a hair lighter than the H51.

The zebralight H31w is a much better light than the EOS for my needs. Here's why it's a better light than the EOS for me:

1. The low beam on the H31 has a much lower output than the low setting on the EOS. I the low setting for much of the time around camp. Ideally this would lead to less consumption of batteries.

2. The high setting has an even greater output than the EOS and the output on the H31 is much more adjustable due to the User Interface so I can adjust to whatever my needs are for night hiking.

3. I use a steripen in colder conditions and so my kit is simpler since now I only need to carry one type of battery (CR123).

4. I can decide to bring the headband or not and have a very usable light either way. I just clip the light to my sternum strap or something while hiking.

You may want to take a look at the ITP H01. It is a single AAA headlamp that uses a strap very similar to the Zebralights. It will do 80 lumens on high. I don't have it, but I do have the flashlight version using the same led and chip and it is superb for its size. It is also inexpensive. Reportedly (on candlepowerforums), the strap is not designed perfectly, but some people seem to not have any problems with it. If you get one, I would love to hear how it is. I've been debating between it and a Zebralight. I have a steripen and have been considering the benefit of carrying a single battery type and have yet to come to a conclusion. Another option, cheaper but perhaps less reliable, would be an Ultrafire UH-H2 (single AA, zebralight clone). I have seen it with a strap that does not use the plastic mount for attaching to the band that would probably save some weight. Good luck.

Most of these mentioned are flashlights, not headlamps. Of the headlamps mentioned, some do not ship with a head strap, so the strap weight doesn't show. Of the rest, they are around 3 oz. fully loaded, so they haven't saved me any weight, which is what the whole project is about.

–B.G.–

Bob,

I have a couple questions. What headlamp are you used to using that weighs 3 oz and puts out 100 lumens?
Also, as far as I can tell, each light mentioned in the thread are headlamps that ship with bands, am I missing something?
Are you open to purchasing something with questionable reliability to get to your desired weight?
Have you looked at the candlepowerforums and if you have, have you inquired about your desired specs?

From what you have mentioned already, it still seems to me, the ITP H01 meets your requirements. It would be 2oz with a lithium aa and you could probably get it close to 1.5 by making minor modifications to the band.

Jeremy, there is no visible brand name or model on my existing headlamp. By comparison to a known 100 lumen beam, it is about the same brightness. Loaded with 3xAAA and the head strap, it adds up to 3 ounces.

I've looked up each of the lights mentioned here, and few are described as shipping with a head strap. Or, if they do, they exclude the weight of the head strap, so I don't really know what the total adds up to. If they do describe the weight of the head strap, then they total over 3 ounces. Various reviews shows what ships with the main product, and if there is no head strap shown, then there is no head strap.

Questionable reliability? No.

Candlepower Forums. Yes, I've looked through there, but their information is not sorted. It seems to be a lot of flashlight geeks chatting.

So far, the nearest I've gotten is the upgraded iTP A3 EOS (flashlight) and a separate head strap which I am still seeking. Of course that leaves it hanging over one ear, whereas a proper headlamp should be smack in the middle of my forehead. If the head strap is too skinny, it is uncomfortable, so I may have to explore MYOG straps. I have one head strap (too heavy), but it must be 15 years old, and it is on one of the earliest 3xAA LED flashlights that ever came out.

On one long hike that I do annually, I use about three hours of headlamp, but often I take it off my head and hold the light closer to my feet so that I can see trail obstacles better. But for backpacking, it is used mostly with the head strap, and that counts in my base weight of gear. My base weight is about 11 pounds counting a bear canister, so any more ounces to be lost will be tough.

–B.G.–

I think your best chance to get to a 1.5oz, ~100 lumen headlamp is to take an existing headlamp in the 2 to 2.5 oz range and remove 75% of the strap and replace it with a lighter weight material (you pick the material) and have the band sized specifically for your head leaving no adjustability except for the stretch that remains in the 1/4 of the band that is made of the original material. I would probably start with the PT Remix Pro which is a CR 123 light, but the only good single aa lights are the metal zebralights and clones which will be too heavy. Or you could probably get down to 1 oz by modifying the ITP h01.

The Zebralight h501 found on the Zebralight website is listed at 63g with alkaline aa and headband. With a Lithium, that would be 57g or 2 oz. With some modification to the headband, you can probably shave another 1/2 oz. I think I just found the light that I want, maybe this would work for you.

First, I will make a trip to the fabric shop to see what kinds of elastic head strap I can find. The strap has to be wide enough that it does not dig in, yet stretchy enough and tight enough that the lamp does not wiggle or slip.

The next step would be to fashion a lightweight strap to go on the existing headlamp to replace the existing heavy head strap, since that still leaves the light on the center of my forehead. That costs me the least. I might be able to eliminate some of the plastic buckles or slides.

Depending on how that works out, I may end up buying one of the new single-battery LED flashlights with a head strap. I may determine that I need brighter light or dimmer light than the previous estimate.

Whichever one works best will go with me on backpack trips. The other one will end up in the trunk of my car. You can never have too many headlamps if you have to change a flat tire at night.

–B.G.–

I judged edited my last post with something new that I found. Hope it helps.

The surefire saint minimus is a great headlamp that runs on one battery & can crank out 100 lumens for 1 1/2 hours & weighs 3.3 oz including the battery. The downside it runs on a CR123 battery & it costs $140. Here is a link for more info: http://www.surefire.com/SaintMinimusHS2-A-BK

From personal experience it works very well, is easy to adjust & an all aluminum Body (rather than plastic) means it's tough as nails. Anyway another one to consider…

Jeremy, that H501 looks interesting. I will have to investigate it more. Like you said, with lithium AA battery it would be about 2 oz. Then if something could be shaved off the strap weight, it might be perfect. Some of the vendors show that as Unavailable, but I will look more. That makes it hard to shop around.

James, your suggestion is 10% heavier than what I have now and costs a lot more.

–B.G.–