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    Circuitry question

    If I have a high-power LED, whether SSC P7 or CREE MC-E; or whether it's a flashlight powered by CR123's or a 18560's, how can I use an existent power source of 24 volts to properly power this LED or flashlight, preferably being able to use modes? I'm asking because I have an electric bike...
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    Help with bike mod

    I have an ezip bike, with the specs for the battery being: "24V / 10Ah Pack, (2) 12V / 10Ah Valve Regulated, Rechargeable" I want to open up the cover for where the circuitry is and solder in an outlet for where I can hook up a flashlight. Ideally I'd love to have some kind of DIY P7 or MC-E...
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    ID this audio connector please

    I have this audio cable which I can successfully plug into my laptop to use an auxillary connection for the sound. However when I bought a 3.5mm extension cable, it wouldn't fit. So now I need to know what this one is called so I can buy the same one only longer. Thanks for helping me out.
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    Rayovac Lantern Moddable?

    I got this rayovac lantern here and I see it uses 4 very blue LED's to produce powerful, but blue light. It has two modes. It uses 3 D alkalines. http://i37.tinypic.com/slogtk.jpg http://i35.tinypic.com/o3hic.jpg http://i33.tinypic.com/9glef9.jpg http://i37.tinypic.com/4h8n5z.jpg Does it...
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    Universal Dynamo Setup to accept most lights

    I've tried searching a bit but gathering all the information that I need for my specific setup is really difficult. While making this post, I did some research. I thought that at first I wanted to take a dynamo generator for a bike, and use some circuits to adapt the power into a form that an...
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    Dorcy 4xAA/4xD Flashlight/Lantern - moddable?

    I've always been adored by the dorcies that were able to go from full flood to a nice spot and do so without many artifacts in the beam. Here is the older model: http://www.dorcydirect.com/p-99-41-1012-4aa-focusing-areaspot-lamp.aspx Here is the newer LED model...
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    Seoul P7 in a 2D Mag ?

    I'd like to know how it would be possible to have one of the new P7 LEDs in a 2D Mag without using Li-on batteries. I am leaning towards using 3 C cells. What about the heatsink? Are there any commercially available heatsinks that I could make work with the p7? Are there any that will retain...
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    What to make of a cheap survival flashlight.

    I basically bought this one from here http://www.buy.com/prod/survivor-10-in-1-solar-powered-crank-led-emergency-lamp-am-fm-weather/q/loc/111/206227869.html Here is a picture of it. (Moderator note: HOTLINKING not allowed IAW CPF Rules) It would be an awesome little device if it was actually...
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    Help me with my Maglite

    I have a 3 D cell maglite that doesnt have the bulb nor the reflector. It is the old version that used the incandescent bulb. I basically want to get a reflector for it and a cree bulb to make it shine again. Here is what I've found. REFLECTOR...
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    another n00b question

    I would post this in a n00b question forum but I don't see one here. Anyway. Would I be able to get a g2l or a 6p or 9p and replace surefire's led with something a little more powerful and up to date, like the q5 cree, or somthing like that. I have no idea what that is btw, but I know it is...
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    Crank recharger for Surefire

    I am not really into collecting flashlights, but several have added up because I have never just bought one really expensive one. I am now looking into buying one that would last me an indefinitely long period of time. I want a surefire for it's lifetime warranty. I hear they are very nice...

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