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    Identifying LEDs

    I've just bought an old set of lights (Ay Up) which probably date from around 2007 or 2008. From what I've been able to find out Ay Ups have been manufactured with different types of LEDs including Luxeons, Seouls and Crees. I'm curious to know what ones are in mine. Is it possible to...
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    REVIEW: Specialized Flux Expert Bicycle Headlight - Photo Intensive

    Thanks very much. Those powerbanks look good, but might not be the easiest thing to carry on a bike - it might have to go in a saddlebag, and run a long lead to the light. I'm a bit wary of using USB leads on a bike since I once tried to extend the runtime of a Garmin Edge 305 with an...
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    REVIEW: Specialized Flux Expert Bicycle Headlight - Photo Intensive

    Thanks very much. Does that mean the light will eventually stop working if it's being run at higher power levels even if an external battery is plugged in? If it's drawing around 1A per hour from it's internal battery will it last around 5 hours (assuming 5mAh internal battery) on full power...
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    REVIEW: Specialized Flux Expert Bicycle Headlight - Photo Intensive

    That's a great review, thanks. Do you know if the remote will work with a USB extension cable? I need to have the light about 120cm (4ft) from the remote. Also, what are the options for powering the light on long rides - say 24 to 40 hours (daytime riding plus one overnight)?
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    AA batteries for SureFire 9N?

    I suppose it’s getting away from the initial post, but I want the light for road riding. I do long distance rides (some of which can go through the night) so it’s a trade-off between performance and battery life. Until now I’d used a Schmidt dynohub as my main source of power, but I can’t have...
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    AA batteries for SureFire 9N?

    Thanks for all the info. The alternative batteries look interesting. However, I’ve just ordered a 3-AA battery holder and will try hooking that up to the light first of all – I’m just curious about what it will do in terms of runtime etc. Most bike lights were incandescent until a few years...
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    AA batteries for SureFire 9N?

    I’ve had a 9N for years, and I’m thinking about using the lamp head/bezel assembly as a bike light, wired to a battery pack. Would 3 x AA NiMh batteries do the trick? From what I’ve read the B90 or B92 NiCad batteries for the 9N are 3.6V and around 1500mAh. My AA batteries are 1.4V each and...
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    Basic one light or two question

    Thanks for that. Probably good advice! I hadn’t seen that NiteRider model before. It seems really good, although it’s heavy! That’s what puts me off a powerful bike light (along with the often limited runtime). I know there are plenty of others (Lupine, Light & Motion, Busch & Muller, for...
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    Basic one light or two question

    I do quite a bit of night riding. For winter training rides I have a heavy bike and don’t mind toting a few lighting systems around. I have some front wheels with Schmidt dynohubs and either run a Schmidt E6 halogen (or two) or a Solidlights XB2 LED. The latter is quite useful because I also...
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    Basic one light or two question

    Thanks for that, James. I’ve not heard of Malkoff or Ra before, but I’ve had a wee look at their websites. I do have a Surefire G2 somewhere, so I could buy a Malkoff module for that. Do you have any experience of the Fenix L2D and PD10 type of lights, and if so, would you say there is...
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    Basic one light or two question

    I sometimes use a Fenix PD10 as a backup to my dynamo light on my bike. However, on my new bike I’m thinking of only using a Fenix or two. I had thought about running two PD10’s side by side, but the limited runtime is a problem for me. I’m considering a TA30 – I know it’s a lot bigger and...
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