Fireflies E07 preview

That’s an oddly strong reaction. It still generally works fine, and several people have done extensive runtime testing on turbo with no issues, even with the air gap issue. It’s unlikely to actually have any functional issues, even if some of the insides may not be perfect.

I just don’t really understand putting something in the trash because of minor imperfections. Maybe it’s not 100, maybe it’s 90 or 95% instead… but that’s a long way from zero. Give it a 50E cell to make the air gap irrelevant, and enjoy the extra runtime.

That is actually possible, and in the first version I sent to Fireflies I tried to convince them to include that mode… but they thought it would be confusing and requested a version without the “low” mode instead. So it’s off/on/blinking only.

My XPL 6500k is still putting out 7000ish lumens but my ROT66 219B has dropped to 2700, I’ve put some more foam in the tailcap, like someone suggested, and it’s back up to 4500ish.

Oh it won’t go in the trash, just in the box where I keep all the kit that is either outdated, or that is useable but with an element of risk. I did use 50E’s with it after the late warning about using 30 and 40T’s. I think other people have expressed their disatisfaction with the product more eloquently than me in this thread. I shall just attempt to get a refund from BG. Its no biggie, its just the risk of buying new products from new companies at a reasonable discount :slight_smile:

Hhmm, foam in the tailcap? Ohhh - to keep the carrier compressed and tight against the front end contact - makes sense from that perspective. I bypassed the driver spring, but you could also try some light coating of NO-OX-ID on the contact surfaces - spring and ground aluminum rings. The foam though works, sounds like, but the bypass and conductive grease helps also in the long term.

Thanks Firemedic, I’ll keep hunting!

$0.673 per emitter? When I see super low prices per emitter on DigiKey, you’ve got to buy a minimum in the hundreds… I guess that’s the same deal?

Concerning the mistake about the MCPCB, the E07 is a quite expensive model but it can be used in muggle mode which is fine. Worth the 6 clicks from OFF to test it :+1:
Thank you ToyKepper :beer:

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NB : double clicks turn off the light, ceiling and floor are reasonably bright in their respective levels. Perfect for muggles, useful for flashlights aficionados.
Floor should be a tiiny bit lowwerrr.

I would not recommend the 30T for day to day use. I only use it for testing consistency to compare with other lights.

Generally I aim for about 5 lm as the muggle mode floor. Any lower than that, and people start asking “is this thing on?”. However, on my E07 it looks like the muggle floor is about 9 lumens. So yeah, it should probably be a bit lower.

Following in the footsteps of others, I’ve swapped emitters to LH351D 5000K W6. This is easily one of my favorites now and have to agree that moonlight looks delicious!

(This is a little blown out, but a good representation of the wall of light the LH315D | 30T combo produces)

Cool mod… where is the best place to get those LH351D 5000K W6?

I actually like the 70 CRI 5000K W6 better than the 80 CRI 5000K U6, just seems whiter to me and that’s what I like. AAAND, more powerful. :smiley:

DigiKey has had them, not sure if they still do… pretty cheap as well. :wink: (they show some 720 in stock as of a few seconds ago)

Dale, you were the inspiration behind this swap, so thanks for showing me the light. :smiley:

I got 35 of them from DigiKey recently.

I just got a gray one last month. The fins are squared off and you can catch your skin on them pretty easily. Meh whatever. I’d be more concerned with how the driver thermal steps down from turbo in under 10 seconds due to the lack of thermal paste that’s been discussed. Fins don’t do much good if it overheats at the mcpcb and driver that quickly don’tcha think. Now we’re talking major design and buld flaw on yet another Fireflies torch.

You bet jdh00, really rocks now in output too doesn’t it? :smiley:

Getting em like that, in a quantity, brings the price down to below $2 each, can’t resist when I’m at their site and got 30 last time myself. Really liking these Samsung emitters, funny, that, as I was going to resist trying them at first. lol

I just a few minutes ago ordered a fairly pricey chunk of Tellurium Copper… in part to make a finned heat sink extension for my E07, seems to need it these days… :wink:

I’m having a lot of issues where I keep squeezing the o-ring out of the rear on mine, it gets pinch between tail cap and the body. Looking at the O-ring groove it doesn’t look like it’s machine very well it doesn’t look like a typical light would be cut. There’s also pretty bad galling in the groove.
I’ll get my real camera and take a pic later but in the mean time, Dale would you mind giving your professional opinion on yours?

Mine has a semi-slim clear o-ring that fits perfectly, no bind no pinch. I don’t remember if it came that way or if I changed it, to be honest, but since the head end also has a nicely fitted clear o-ring I’m going to have to assume this is the way it came. The groove does seem to be pretty minimal under the o-ring, hadn’t noticed it as I didn’t remove the o-ring before. Mine has the o-ring groove cut in a rounded profile that matches the o-ring, looks smooth and well cut though.

Does it look like this?
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