Recent content by Benson

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    ROP conversion to LED?

    I assume you're using the Hi bulb... XM-L at rated spec (3A) will be slightly dimmer, but you can overdrive it to match or exceed with good heatsinking. SST-50 at spec (5A) is basically equal to ROP-hi, but a direct-drive with 4 D cells would go well past -- lots of heat to deal with though...
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    Guidesman HID

    On the Menards website, it says it's the same manufacturer (Baccus Global), but it looks like the HIDC10, not HID0109.
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    Far Infrared LED possible?

    Ah, that helps... Unfortunately, I only have one "ebay special" IR power LED, and don't have proper test equipment (or manufacturer's specs) to know what sort of output power, so I'm afraid I won't be much use on the practical specifics... I do know Osram makes an 850nm PD here which outputs...
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    No get togethers in the midwest?

    I'm in Northern Indiana.
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    Far Infrared LED possible?

    Roithner has some pretty cool toys -- only mW/uW class output, but they do go out to 7um wavelength, and illustrate a key point. Look at the power output for LEDs in the same series with different wavelengths, and note how fast it rolls off past about 2um. There's a common misconception that IR...
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    stanley Fat Max XML spotlight !!!

    So.... 15Wh/1.3h = 11.5W average. Or, assuming the batteries are delivering 8V at that 1.34A reading, 11W; close enough. If we figure 80% efficiency, that's about 2.8A to the emitter, for 900 lumens or so, which fits with 700 OTF. If it's not getting real hot at that level, I think it might be...
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    are ALL of the Surefire three cell (9p?) lights they made P60 compatible?

    Yep, <1% voltage change = "a somewhat noticeable drop in output". Absolutely. How long? ZERO! ZERO SECONDS LONG! Just look at the graph, which you say you're not trying to argue is not accurate! It starts below 3 volts the very first time -- and it's not gonna charge itself! It starts, by my...
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    are ALL of the Surefire three cell (9p?) lights they made P60 compatible?

    A 3.7V module will fail on 2 Li-ions just as surely as on 3 primaries. I use some cheap dropins as well, but I've never had one rated for 8.4V (i.e. 2s Li-ion) fail or behave strangely on 3 primaries. You said (emphasis mine): But since those several drop-ins would fry on a pair of 17500s as...
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    are ALL of the Surefire three cell (9p?) lights they made P60 compatible?

    Not as far as I know -- could you name these "several" drop-ins? Just... no. Okay, fully-charged ICRs and IMRs are 4.2V open-circuit, or 8.4V for 2s. Fresh lithium primaries are 3V open-circuit, or 9V for 3s. But the Li-ion's voltage drops less under load. Look at these graphs from Silverfox's...
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    H4-4 Bulbs - Question

    Okay, you'll get pretty much twice the output, but half of it will be flood. No extra throw. It's not at all the same principle for multi-LED lights. They have individual reflectors for each LED, so they each contribute to throw; of course this makes the reflectors smaller (= broader beam), so...
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    What's the biggest and baddest LED flashlight that you have?

    Biggest, baddest, and brightest in candela, is my DEFT-slaying LED Torpedo (thanks, ma_sha1!) Probably "only" about 300 lumens OTF, but well over 300kcd. Yes, it throws a tidy square on cloud bases. Brightest in lumens, the Skyray King (a TM-11 clone), about 2000lm.
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    H4-4 Bulbs - Question

    Could you be more clear what you mean by "H4-4 bulb"? H4-4 is not AFAIK standard terminology. H4 is an automotive headlight bulb with two filaments; the references I'm finding googling H4-4 seem to be various types of HID bulbs (which fits with your saying 4300k) meant to replace an H4, but...
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    Mag changed their incan bulb!

    So, these bulbs are known as MagnumStar II and are (or will be) offered as a conversion kit for PR Mags, with a PR-bipin adapter: See http://flashlightsunlimited.com/magbulbs.htm Which raises two questions... 1. With a mica disk cut to fit (as used in the classic 1160 MagCharger upgrade)...
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    Mag Light Conversion

    Regarding the batteries, it's been my experience that it's quite hard to fit Li-poly batteries in a round flashlight with any sort of packing efficiency -- something about "square peg, round hole", and the difficulty of finding Li-polys in sizes that stack well (e.g. Mag ID is ~32mm, so about...
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    Sold/Expired Nichia SW45B10L 219 Triple P60 Drop-in ALL GONE (For Now)

    Received last night -- it's rocking with that elliptical optic. Regarding fitment, I've got it in a SolarForce L2X, and mechanical contact is real good with ~2.5 turns of coke can and a couple layers of silver foil and/or crumpled silver foil bits (that stuff's fragile!); a spring provides...
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