Fireflies E07 preview

Yes, luv the pics - great job!! (should have said so before... )

I do luv the look of copper, but an E07 with all that power is wut scares me - least alum the rest of the light maybe?

It seems E07 Cu edition product page is up on their web
http://www.ff-light.com/index.php?route=product/product&product_id=57

Great deal at $0.00. May have to get one.

Yeah I was looking at that too. The price is right!!!

But somehow I don’t think Fireflies actually means to give these away for free. :disappointed:

I am not a big fan of the Clear-Anodize aluminum, a flashlight should not look too bling bling it should look cool also…for me as a security guard this would look to bling bling being on duty.
However black with copper head would look better, better contrast also…

I guess we will have to wait and see if this is aluminum or titanium. Anyway… I am waiting for the astrolux competitor.

It’s copper main body with TI batt tube and bezel. The other issue besides baller bling is that the TI conducts heat extremely well and makes the entire light, your hand and the cell get extremely hot extremely fast. My raw alu E07 just on stock top of ramp still reaches 50C in like 2-3 mins. Holding a light that’s batt tube is 40+ degrees after a minute wouldn’t be worth the baller bling imo

TI doesn’t conduct anywhere near as well as aluminum yet alone copper.

You should be cautious not using turbo too often and for too long if you didn’t correct the LEDs MCPCB because it is not sitting properly on the head’s shelf and the heat isn’t evacuated properly to the flashlight’s body. Particularly if yours is the Nichia which heats up very quickly.

The little sister, FireFlies E01

“15mm thick integrated shelf” :open_mouth:

Just saw that and came here looking for answers. Doesn't look like there are any yet.

That optic though... That's sexy.

it looks like the black version had a slightly different optics

Wonder if they can give us a direct front shot of the optic and a disassembled pic to see how the mcpcb looks like.

Nice idea but one has to be careful with the SST40. koef3 discovered that the bonding wires already burn with about 9A and more than 7.4A are not reasonable. However, maybe the N5 flux bin is less sensitive to overcurrent than N4 tested by koef3.

@SKV89, what do you have in mind ?
Personnally with a “big” TIR, i’m immediately thinking to Clemence’s VR21SP4 MCPCB with the hope to find a frosted compatible TIR.

Tally Ho, that is exactly what I have in mind.

:smiley:

I’m surprised that my E07 dropped in output significantly over time. For example, my XP-L HI version that measured 7,327 lumens with a 30T now measures 5,950 lumens with a 30T, 5,820 lumens with a 40T. I don’t even use this E07 besides blasting it on turbo every now and then for output measurements and tint comparisons so I’m sure it never overheated. My other E07 also lost some output but not as much as this specific one. I leave the cells in these flashlights for the aux light for half a year though. Does the driver degrade over time? Maybe Lexel might be able to answer this since he designed the driver.

Anyone else noticed their E07 output decreases over time?

Sadly, it can’t really be the driver.

It must be the LEDs getting super hot, but the light throttling down too soon.

The 1st gen didn’t have a good flat MCPCB with very poor thermal paste contact. That means the LEDs could easily be at extremely high temps without you knowing.

I take measurements at 2second so it doesn’t throttle down. Just very strange.

I havent notice any lumen decrease on my e07 xpl hi… i got 7150, and 7310 lumen in two seperate measurement.