Recent content by A10K

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    DIY Euro-style Beam Shaping

    This has absolutely been tried before, there was a thread with lots of photos by somebody who did the same thing you are wanting to do.... except I can't find it right now (THIS might be it, but the links no longer work). My inadequate verbal description will have to suffice. The jist of it is...
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    Sold/Expired P60 modules -warm, neutral, cool white/XRE-XPE-XPG-XML-U3 / NICHIA 92CRI PART 11

    On a similar note, do you expect to have XP-G3 modules in HI-CRI tints available anytime soon? They are available from 3000k to 5000k in up to R3 bins. I'm mildly excited for good-throwing Hi CRI emitters. Do you have an idea how they compare to the Nichia 219Bs?
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    xpg2 to xpl v5?

    In fact, at least in some cases the XP-L throws WORSE than the XM-L2 (at least with TIR optics): http://www.carclo-optics.com/optic-10048 Here is Carclo's data page on its 26.5 clear/narrow optic (I use these on my lights). With the XP-G2, it can ideally produce 37 cd/lm (candela is equivalent...
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    optimum drive levels for XML / XM-L2

    FANTASTIC, now I know what is going to keep me awake at night for the next month, and here I thought I had hit a dead end and was moving on to transformers and charge pumps. THANK YOU VERY MUCH ladies and gentlemen. (Also, can we request this thread be moved to Bicycles? It seems to have strayed...
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    optimum drive levels for XML / XM-L2

    Believe me, I've tried this on my own and have never gotten it to work. I've tried it with a Buckpuck, a cheap DX driver, and an LM2575/2576, all to no avail. By testing between the dynamo and power supply, it seems that most of these drivers depend on a power source that can source => their...
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    optimum drive levels for XML / XM-L2

    2 more things to consider: While there are a lot of XM-L-based flashlights that can produce 900 lumens, few of those are meant to do it continuously. Most do it on "Turbo" mode that steps them down to a substantially lower output after a matter of minutes, mostly to game the ANSI rating system...
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    Olight SR96 ?

    3 MK-R = 12 XP-G2 Think about that for a moment.
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    What comes after XP-G2?

    That woulD be the MK-R. You're welcome.
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    What comes after XP-G2?

    Going by the dates on the press releases, the original XP-G was announced September 2009, and the XP-G2 was July 2012. The interval was substantially larger for the XP-E/XP-E2, and less for the XM-L/XM-L2. I think the answer you came here looking for your question "What comes after XP-G2" was...
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    has anyone seen MK-R lumen per watt data?

    Some people have reported bugs with it on their machines. I've seen issues with it taking some time to update the values in the chart, every time I've used it its given me incorrect brightness bin options, like R3 XM-Ls and U2 XP-Gs. I just tried the info you posted and am showing the XP-G2 (R5)...
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    has anyone seen MK-R lumen per watt data?

    To anyone curious about comparing CREE LEDs, use their online tool: pct.cree.com You can specify LED, brightness bin, temperature, and current range. No more drawing lines on the tiny datasheet graphs. To your specific question, an MK-R is basically 4 XP-G2s in series. It operates at a much...
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    what is the best lens angel for Bicycle lighting

    The last time I used XM-Ls for bike lights I used them wit Carclo 20mm plain-tight optics, #10003, and they were serviceable. Not a lot of throw, but with the light output they filled up the road pretty well. For my upcoming XM-L2 build I'm going to upgrade to the 26.5mm equivalent, the #10048...
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    Warm XM-L2s?

    You can also get 3000k warm white XM-L2s on 20mm stars from Cutter, in T4 brightness. Just ordered a couple for bike lights.
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    Predator owners... Is it OK for general use?

    I have a Predator, and while the spill can be a bit too tight for work lighting, for most tasks I find it phenomenally useful because you can get away with using only very low modes. The throw even on the 1.5 lumen firefly mode is capable of lighting up across a dark room at night, for getting...
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    Armytek Prime Pro

    Re: Armytek Smart A1 (1x Eneloop AA, 340 lumen) Armytek almost always quotes output in emitter lumens. The Predator Pro's overdriven XPG-2 is 670/640 emitter lumens. Since this will be among their first AA lights, its not clear if they're calibrating their numbers to 14500 Li-Ions or...
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