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    red headlamp suggestions?

    I bought the zebra h504r and the sofirm hs21. Subsequent testing suggests that I forgot/couldn't find the very dimmest zebra mode while in the field. It's quite dim and should have been reasonable for when I wanted just a little light. The sofirm dimest setting is still sort of bright, at...
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    red headlamp suggestions?

    I'll just report that we ended up not really needed the red lights that much because lots of other people had excessively bright red lights. :( The path was also very flat and easy to navigate just by moonlight most of the time. When we did use the red lights, we actually found that we...
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    red headlamp suggestions?

    I went ahead and have ordered the Zebra 504r (I have several zebras and like them and the adjustability of the levels seems like it could be useful, since I don't know what I need) and the Sofirm HS21, which I found could be had on amazon with fast shipment (for a somewhat higher price). The...
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    red headlamp suggestions?

    Thanks for that list. That Sofirm is interesting with the rotary mode switch, but looks like it might not come fast enough---I couldn't tell where they ship from. I realized that the Fenix I was looking at is the HM55R Renegade. I hadn't realized Renegade was an important part of the model...
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    red headlamp suggestions?

    No, we've never been there and I don't know anything about the area. We're going to the smoky mountains to see synchronous fireflies at night. The direction from the park was to have red lights only both to preserve night vision and to avoid disturbing the fireflies. Green light is...
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    red headlamp suggestions?

    I need some red headlamps to use for seeing a trail while walking, so like to see 10 feet. I want something where it's easy to turn the red on/off without accidentally activating the white. I may want several lights (outfitting group of 5-7 people), so I was thinking of one nice light ($100...
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    Emisar D3AA misbehavior?

    Hmmm. I just took a freshly charged eneloop off the charger and put it in. No obvious issues. Light still works as I expect without any weird behavior. The battery test is blinking 1 1 2 though. I have a tester I use that isn't just a voltage sensor and it thinks the battery is indeed fully...
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    Emisar D3AA misbehavior?

    The battery I've been using is an eneloop. The bright flashing I complained about occurred with regular ramp-up when trying to turn the light on, not factory reset. After some more fiddling I stuck an alkaline battery in the light and was able to reset it successfully and also remove and...
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    Shortest AAA light?

    Looks like DQG is gone?
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    Emisar D3AA misbehavior?

    I got an Emisar D3AA light and configured it a bit. Then I switched the battery and fiddle with the optic, and now it's in a weird state where when I hold the button down it ramps up smoothly (even though I configured for steps) and after reaching bright it goes into a rapid flashing mode...
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    Shortest AAA light?

    What AAA lights are very short in length? A lot of AAA lights are larger than they might be due to large reflector heads. So what small options are out there?
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    Headlamp for close work (AA? COB?)

    All kinds of LEDs show up in dollar store products---you can find cheap non-COB lights as well. Its presence at dollar stores just means that low cost COB exists, not that COB is necessarily a low cost solution. Since COB appears to be more efficient and hence produce less heat, why...
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    Headlamp for close work (AA? COB?)

    Yeah, also not a fan of the non-replaceable battery. In addition to the longevity issue, you can't just swap batteries if you need to keep working. I don't have the impression that chip on board is "low cost" or inferior to other technologies. Am I mistaken? It seems like COB would be well...
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    Headlamp for close work (AA? COB?)

    I was recently doing a bunch of wiring and using zebralight headlamps (I have two that are pretty old---don't recall the models) and found that their lifespan was annoyingly short when run at a satisfactory brightness. They also got really hot. Recently I've seen a bunch of ads for a COB...
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    HIGH internal resistance eneloops

    When I checked the capacity listed was zero. And the voltage was still low. I tried shorting it with the good battery for longer and the voltage went up. And then I checked again...and now my charger is complaining about high resistance again. So it's not looking good. I also noticed that...
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    HIGH internal resistance eneloops

    It looks like four of the high resistance batteries got trashed. I had the one left that I pulled out of the zebralight. I measured it's no-load voltage and got something very low, like 0.15 V. I shorted it to a freshly charged eneloop. It was fairly slow to bring up the voltage---five to...
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    HIGH internal resistance eneloops

    I don't think my meter came with instructions. If it did, they were along the lines of "Insert batteries in the correct direction and don't operate under water". It's an unbranded model. It may show a scale going down to 0.00 mA but really only reliably measure signals that are significantly...
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    HIGH internal resistance eneloops

    I keep wondering if I should upgrade my multimeter. When I attempted to measure parasitic current I selected the mA scale and because the autoranging seems slow and flaky I selected the smallest scale, which showed 0.00 mA. It matters that the light is off because when it's on I get 325...
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    HIGH internal resistance eneloops

    So can I buy a buck circuit convertor or is it something that would be a component to solder onto a board? A reason I asked the question is that I found in my searches an adjustable voltage power supply, but it's advertised as being 3A at every voltage, so evidently when you lower the voltage...
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    HIGH internal resistance eneloops

    I've been using the light as a task light. I have it mounted on loc-line so I can position it. And it's constantly running down and I have to change the batteries. Can I buy a "buck circuit" device that's easy to connect to my power supply? Does it keep max current constant as it drops...

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