Recent content by Bright Bird

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  1. Bright Bird

    Lack of high-powered super throwers

    Yay, exactly what I was looking for - thanks for the link, it looks like that's going to keep me busy for a while! :thumbsup: :)
  2. Bright Bird

    Lack of high-powered super throwers

    Those Vinh lights are probably the Holy Grail for a lot of flashaholics (and not even as expensive as I had expected after previously watching some YouTube videos). But I am mainly interested in the physics of how the photons behave after they leave the emitter, and how different properties of...
  3. Bright Bird

    Incoming - What do you have coming in the mail??

    Not sure though how long it will take for the Lumintop Prince Mini, Convoy BD06, Imalent DT70 that I ordered to arrive (and the Astrolux MF-01 which is on back order) - but at least I should be getting the silver Olight i3e EOS next week, which should ease my suffering! :) Already received...
  4. Bright Bird

    Lack of high-powered super throwers

    Thanks for the replies. 3km throw? :eek: Wow, that's something I hadn't heard of before ... I had a look at your site, STO, and those Ra lights look seriously impressive (especially when reading numbers like 2.6 megacandelas!). Shouldn't it be possible though to focus a beam without using a...
  5. Bright Bird

    Lack of high-powered super throwers

    Not me personally, but I'm sure that there would be a use for high-powered searchlights. Also, with a torch that reaches e.g. 2km, the light at that distance wouldn't be very bright. But a target at 500m could be lit up much brighter than by a light that only has a maximum throw of 700 or 800m.
  6. Bright Bird

    Lack of high-powered super throwers

    The furthest throwing stock light that I know of is the Thrunite TN42, which will throw a tight beam for nearly a mile, despite only having an overall output of 2,000 lumens. Since there are lights with several times that output, shouldn't it be theoretically possible to achieve twice that...
  7. Bright Bird

    IMALENT DT70---a powerful flashlight up to 16000LM!

    Can someone tell me what's up with the price for the Imalent DT70 on GearBest? When I visit the site on my PC, it shows me a price of £119.69, stating that this is a '47% off' discount valid until 30/08. But on my phone, the same page shows me a price of £137.49. I'm happy to pull the trigger...
  8. Bright Bird

    Multiple 18650 light - questions about safety

    I see. I guess when I see the figures diverging, I'll probably write another post asking whether batteries with those specific values are still safe to use together. It will probably take some time for the batteries to reach 80% - should be interesting though to observe the rate at which they...
  9. Bright Bird

    Multiple 18650 light - questions about safety

    OK thanks. That's a larger difference than what I had expected. But if the individual capacities are within a few dozen mAh's of each other, and they're above around 2,400mAh (for cells that were originally 3,000mAh) I shouldn't have to worry. I'll also keep an eye on whether any are depleted...
  10. Bright Bird

    Multiple 18650 light - questions about safety

    So from what i can gleam it seems that the main common issues with cheap DMM's are high amperage measurements, and AC (mains) current. At the moment measuring the voltage of batteries is what is most important to me, but as the batteries degrade at different rates I will obviously also want to...
  11. Bright Bird

    Multiple 18650 light - questions about safety

    Nice, thanks! :)
  12. Bright Bird

    Multiple 18650 light - questions about safety

    Good to know - that means I'll be continuing my current practice. I found the following on HKJ's page about using a DMM: so now I'm not sure whether that might be a problem that is likely to occur with my DMM, which is a very cheap one that I picked up on eBay for £6. I noticed that quite a...
  13. Bright Bird

    Thrunite TN4A (XP-L V6, 4xAA) review: RUNTIMES, BEAMSHOTS, VIDEO and more!

    Mea culpa for conflating 'cutting off' with 'stepping down to a very low level'. I didn't manage to let the batteries run down last night as I was also testing the ThorFire C8s that arrived in the post yesterday. But I just conducted an indoor test, which confirms my memories of what I had...
  14. Bright Bird

    Thrunite TN4A (XP-L V6, 4xAA) review: RUNTIMES, BEAMSHOTS, VIDEO and more!

    I see now what you mean - the graph does indeed show a small step down to a slightly lower outpit before it drops to low mode. But that is still to a considerably higher level than 'high', and I doubt very much that it's something I would notice. Hopefully my batteries will be low enough...
  15. Bright Bird

    Thrunite TN4A (XP-L V6, 4xAA) review: RUNTIMES, BEAMSHOTS, VIDEO and more!

    According to the chart on page 1 of this review, the step down should occur to a very low level, which is what I experienced. Just got back from walking my dog, but those batteries do last long! I thought they must have already been half depleted, but I had the light continually on turbo mode...
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