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Thread: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

  1. #1

    Default Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Fireflies is off to a quick start as a company. The ROT66 became an instant flashoholic's dream light come true, and is a favorite among many enthusiasts. They're currently rolling out their 1x21700 headlamp 4x optics light, the PL47. And now, they have a new toy on the block, the E07!











    1x 21700 battery
    7x emitters in front in 25 degree optics
    aux leds on side-switch and head
    Anduril UI
    Fet+1 driver
    112mm x 37.5mm x 26 mm
    125 grams

    LED choices:

    Nichia 219B R9080 CRI >90
    Luminus ST20 4000k CRI 95
    Luminus SST20 5000k
    Luminus SST20 6500k
    Cree XPL HI 6500k (6900 lumens max)
    Cree XPL HI 5000k

    The E07 has evolved since its early prototype stages. Fireflies has added a solid 10mm thick chunk of aluminum behind its emitter board to help with heat absorption on turbo. The head now has more fins than before, with the largest being 6mm deep. The light gained 40 or so grams from its earliest prototyping. As a result, the light should handle the heat from turbo fairly well, but will still need to step down eventually.

    Fireflies had 219C 5000k CRI >90 as an option from the E07's earliest stages, but that has since been replaced with the 219B R9080. Color temperature isn't given, so we don't know if it's the SW45k or SW40 or some other CCT. I'm assuming it's the same SW45K they're using in the ROT66.

    Both the side switch and the head have purple aux LEDs! Very cool. There's so many great emitter choices, I can't just buy one. I'm loving the look of the gunmetal gray E07.
    Attached Images Attached Images
    Last edited by twistedraven; 11-28-2018 at 07:01 PM.

  2. #2

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Looks interesting.

    I would likely go one of the high CRI options.

    It looks like the clip is reversible, which is good for me, since I would carry clipped bezel up in my back pocket

  3. #3
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    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Glad to see Anduril coming stock on more lights.

  4. #4
    Flashaholic* stephenk's Avatar
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    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Quote Originally Posted by staticx57 View Post
    Glad to see Anduril coming stock on more lights.
    Agree, but would love to see it on an 18650 light with sensible output levels.

  5. #5
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    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Quote Originally Posted by staticx57 View Post
    Glad to see Anduril coming stock on more lights.
    I prefer Narsil because of the way moonlight is activated: hold the button until moonlight comes on then quickly release.

    The D4S (Anduril-like?) drives me crazy because I regularly trigger the last remembered mode by accident because I don't hold the button long enough. Moonlight comes on as soon as you start holding the button, and there's no indication when to let go for it to stay there.

    *I don't have any true Anduril lights, only the D4S.

  6. #6

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    On my ROT66 with Anduril, the light will give a subtle, single flicker (at moonlight brightness) once the adequate time is pressed for moonlight to stay on moonlight, and not accidentally activating mode memory.

    For these Fet+1/Fet+3 drivers that Fireflies uses, I tend to prefer Anduril, because its configurable ramp ceiling allows you to consistently stop your ramp at the highest regulated output if you program it that way.
    Last edited by twistedraven; 10-24-2018 at 08:18 AM.

  7. #7
    Enlightened
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    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Quote Originally Posted by twistedraven View Post
    On my ROT66 with Anduril, the light will give a subtle, single flicker (at moonlight brightness) once the adequate time is pressed for moonlight to stay on moonlight, and not accidentally activating mode memory.
    Thanks for the info! Now I have no reservations about ordering one of these with the aux leds. I just wish they came in all red aux (including switch) instead of blue.

  8. #8

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Quote Originally Posted by stephenk View Post
    Agree, but would love to see it on an 18650 light with sensible output levels.
    Well...the D4 has sensible output levels. It also has crazy output levels. It took me a little while to really internalize that the access to crazy output levels really doesn't diminish it's utility at lower levels.

    If Hank starts shipping the D4 with Ramping IOS v3 like the D4s, then it will also gain the ability for the user to reduce the upper end of the ramp range (also used by double-click from off, but double-click from on still goes to full turbo).

    Now Fireflies seems to have adding an option to the market roughly in between the D4 and D4s, but with Anduril.

    Maybe next they'll do a small 16340 or 18350 light (the D4s with the short tube still is fairly large in diameter). I wouldn't even want multiple emitters for such a light, and it would be completely justified to leave out the FET for the smaller body in favor of some form of 1+N x 7135 driver.

  9. #9

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Very cool! Seems like what the Emisar D7 was supposed to be.

  10. #10

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    The fact that Fireflies isn't listing 219B SW45K R9080 as an option for this light might be telling that they're running low on these emitters. ROT66 with the SW45K R9080 might not be available too much longer! Or I could totally be wrong.

  11. #11

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Running low on 219B's definitely seems like a possibility. Fortunately my ROT66 with 219B's is on its way. I decided I need to stop waffling on that decision in case they do run out.

    Apparently they still have enough to continue offering them on both the ROT66 and PL47 for the present time.

  12. #12

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Fireflies has a final prototype of the E07, and I updated the original post accordingly. They have listened to our wants for more heatsinking on the body, and have added a 10mm shelf behind the led board. That's basically a 10mm x 37.5mm solid chunk of aluminum to help soak up heat from the emitters for longer turbo runtimes. They also went from 4 cooling fins to 5. What has also changed is that they recessed the side-switch from the head.

  13. #13
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    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Prototype is significantly nicer than the original rendering! Fingers crossed for an efficient buck/boost driver!

  14. #14

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Quote Originally Posted by NPL View Post
    Prototype is significantly nicer than the original rendering! Fingers crossed for an efficient buck/boost driver!
    So far, they have been working with Lexel over at BLF for drivers, as far as I know, and I think Lexel's experience so far is entirely with linear regulators.

    It would be great to see more boost and/or buck driver experience showing up in the modding and custom light community, though. I'm only aware of the MTN-Boost driver and the BLF GT driver at the moment.

  15. #15

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Huge update! The E07 is officially available for sale! Fireflies has published official emitter choices and product images on its site, and the E07 looks even more handsome than ever! The gray one strikes my fancy very much.

    I'm also not sure which LED choice to buy, there's so many interesting options!

  16. #16

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Yes the grey looks amazing!

    I have the PL47 right angle light in the mail with the 219b emitters. So, I think it will be XPL HI 5000 K for this one.

    I'm going to wait for the discount code before I order the E07.

    Fireflies is on fire with thier new releases!
    "There ain't no bones in a hotdog" F. York.

  17. #17

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Yeah I'm thinking XPL HI 5000k as well. Make it have as much output as possible from the small form factor. Fireflies uses 3a tint bin on the 5000k as well, so there's a very good chance those will be below or at the BBL, and not over it.

  18. #18

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Exactly, I'm looking for some good tinted PUNCH as well.
    "There ain't no bones in a hotdog" F. York.

  19. #19
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    Sick2 Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    V3 3a.. Think i need glasses Why 20 bones more!
    Last edited by knucklegary; 11-28-2018 at 08:42 PM.

  20. #20

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Probably because it's more expensive to source cree emitters on their behalf, I'm not sure. SST20s are relatively cheap, and super high performing to boot.

    Even with the 20 bucks addition, it's a pretty good price for the performance and quality you get with fireflies.

  21. #21
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    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Yep, I got a silver XPL Hi 5000k in cart waiting to commit. Worried about delivery during this hectic postal time of year.. may postpone to later date

  22. #22

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Looks like they got a clear anodized version in the works as well, as per the delivery date list.

  23. #23
    Enlightened lumenati's Avatar
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    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Quote Originally Posted by twistedraven View Post
    Looks like they got a clear anodized version in the works as well, as per the delivery date list.
    I like the clear anodized version as well. And the dings go unnoticed. : )

  24. #24
    Flashaholic* MAD777's Avatar
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    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Has anyone posted a review with measured performance numbers?

  25. #25
    Enlightened lumenati's Avatar
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    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    After further research... Caution.
    BLF comments are becoming more negative.
    I suggest a wait and see before depleting funds.
    Hoping E07 is all true and not too good to be true.

  26. #26

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    I don't think anybody from BLF has even gotten their E07 yet, so nobody has actually commented on the product itself. Everything has been about communication or lack thereof from Jack of Fireflies and/or shipping times.

    Well I do take that back, Toykeeper has gotten her sample, and she likes it.

  27. #27

    Default Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Quote Originally Posted by lumenati View Post
    After further research... Caution.
    BLF comments are becoming more negative.
    I suggest a wait and see before depleting funds.
    Hoping E07 is all true and not too good to be true.
    What's going on? I ordered 2 of them few days ago please tell what's wrong?
    Last edited by Nichia!; 12-19-2018 at 10:26 AM.

  28. #28
    Enlightened lumenati's Avatar
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    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    Thanks for the encouragement. I do want one.

  29. #29

    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    I didn't receive them yet and they didn't give me any tracking number still waiting for them to give me something

    Should I cancel my order?

  30. #30
    Enlightened lumenati's Avatar
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    Default Re: Fireflies E07 (1x21700, 7x 90+ CRI emitters)

    BLF comments suggest a lack of communication or no response at all. That troubles me somewhat. I hope you receive yours soon and you can post a review of sorts. Thanks in advance.

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