Fireflies E07 preview

That’s a fair point, absolutely possible that fireflies didn’t know. But, for someone operating in this space acquiring tens of thousands of emitters and thousand of drivers and components, i consider it unlikely to not know who to trust to purchase a cell or how to tell the difference.

Regardless, we’re all rolling the dice each time we buy a budget light, and I wouldn’t have cared a single bit if this light was twice the price, I think it’s awesome. The battery deal, and then no official response or offer of making it right is shady.

Not sure what point of the clip design you are referring to - do you mean the click-onto-the-tube-style? Because the D4 has one of these too but it just works perfectly on mine. It’s much longer, weaker tension and just holds perfectly onto the body. I had it clipped onto my belt for months and I head zero issues with the clip failing. My Klarus XT2CR lost the clip about twice a day or so. Really annoying. The E07 now loses the clip whenever I try to put it onto ANY fabric. I could try to bend it, but i won’t wear as a pocket light anyway - the head is too big for my taste to do that.

The entire thing. I don’t like the one Hank originally used on the D4 either. And Lumintop tried to get us to use one on the FW3A at one point, but the team unanimously rejected the idea:

Here’s the one originally used on the D4:

… and on the V11R Mirage:

… and the E07:

I haven’t liked this clip design on any light I’ve ever encountered.

I’d like to see an Olight-style clip instead, ideally with a full ring (like the FW3A, and the SolarForce L2 clip) instead of arms.

I also have clear ano with SST20’s and noticed the same thing. MCPCB seems to make full contact with the shelf and the head warms up really fast on turbo. Please report back your findings when you take yours apart because I’d really like to avoid messing with mine.

YES! The ring attachment will always beat the clip arms that scratch the light over time and can come off. I’m looking, but 21700 battery tube size is not near as common as 18650:(

Thank God. The ring-style clip is one of the main perks that I like about FW3A. It would be much less appealing to me otherwise.

I’ve had exactly the same experience, but I think I’ve fixed it just now.
Here’s what I’ve done:

  1. Install the clip backwards so that it extends beyond the tailcap. Hold it in place with a thumb so that it doesn’t pop off and pull with an index finger to bend it slightly.
  2. Tied it down with a braided fishing line using a trilene knot.

Yeah, it doesn’t look pretty (though it’s much less noticeable in person than the picture), but it seems to be very strong (for now).
Also, this is my first attempt and I have no experience with “fancy” knots, never had any interest in fishing, so I’m sure it could look better.

Good idea with the fishing line.

FYI: for those like me without knotting skills I’ve found that a simple double-X knot of Trilene can be made super-durable by applying a little super-glue gel to the knot.

Agreed, full-ring would be the way to go. I am very happy that the clip-on was rejected for the FW3A. And I am glad that I did get another clip for my D4, not the first one. I checked my XT2CR again, and the clip is, besides from the color and the holes in it, almost identical to the one of the E07.

Howdy, about ready to purchase an E07. I’ve read most of the thread, have seen the issues and the potential solutions. But some questions to sum up -

- where best to purchase? Fireflies or nealsgadgets or…?

- is there a discount path still valid anywhere?

- planning to get the 6500k emitter, anything I should know?

  • is the best battery option still a (genuine) Samsung 40T, or has something risen above it in testing?
    Thanks for helping out!
    (I also realize Fireflies is on vacation until 2/15.)

When you purchase, definitely pay for expedited dhl shipping. It’s so much faster. Buy your 40T from a reputable “battery dealer.” There is a thread on here with a discount code for all sellers, but you have to request banggoods code.

got rid of the burrs and some scratches...

i need to add a stronger chamfer too i think (45° 1mm ? )

Does anyone know why the Nichia 219B variant of this light seems to have disappeared? It does not appear to be available from anyone any longer. Is this temporary, or has this version simply been permanently withdrawn?
Thanks

I think fireflies ran out of 219Bs.

here's some 21700 battery test results I ran:

You do have to put this into perspective:

  • These tests are done for turn-on only, no indication how the cell droppage works
  • it's a one shot test, no averaging over several runs, etc.
  • amps is measured first, then lumens reading taken
  • amps is taken using a clamp meter with the tailcap removed - stock tail spring is high qual but not bypassed, so lumens may read lower compared to measured amps.

Interesting the 30T got such high amps but didn't deliver based on comparisons to other cells. The 40T is the actual winner, over the 30T. Also interesting the true branded 30T and 40T did notably better than the rest.

@TomE, I think the Samsung 30T was pushing the emitters way too hard.

Maybe, but it's only about ~4 amps per LED, but could be the heat.

M4D M4X Did you already attempt the emitter swap?

Thank you Tom E! This supports my assumption that the LK4000, the Shockli 4000 and the Sofirn 4000 are all made of rewrapped Lishen 2170SA cells. It would be nice to know if these fake 40Ts use this cell, too. So far, I only know about two cells with this ring in the negative pole: Lishen 2170SA and Samsung 48G.

Did you use Vapcell's 21700 5000mAh with 10A or the one that is branded with 15A? The latter one is known to be the Sanyo NCR21700A ("Tesla" cell) and has a significantly recessed positive pole.

Cheers,

Thomas

Isn’t it the LG M50 also has a ring on the bottom?

Puts some credit into my E07 XPL measuring slightly more with the 40T than the 30T.

I see Fireflies have upped the quoted output of the XPL 5000k from 6200 lumens to 6900 lumens.