Fireflies E07 preview

I’m guessing you did a reflow to get the LH351s on there vs had a spare board? Would be a good choice for pure flood from this light I bet!

Just a suggestion in future vids you should try to speak up a bit more, I had to crank my volume for this one to hear anything.

That is good news. Sounds like Fireflies is responding to the issues and working to fix them.

I, uh, think I may have covered the microphone in order to hold the phone in such a way that I could hit start/stop. I’ve heard that complaint before… :stuck_out_tongue: Tend to talk softly when on the phone or speaking to someone that is close. Sorry. Not about what I’m saying , it’s about the light. lol Guess I could speak like Samurai Jack… (been watching cartoons with my boy…)

Dale, can I bring one of these overs during one of your modding sessions and just be a fly on the wall?

I agree. It is encouraging. With the lengthened tube, a large solder blob on the spring won’t dent the cell. I’d hope that the screw issue/broken optic leg will be fixed. Beveling the sharp edges and adding thermal paste should make this a must have for an excellent size-to-power ratio.

If possible and if anyone is listening, I’d like to see switch colors match the aux leds on the head. I’d also like to see the switch lights be able to be turned off, but that may just be pie in the sky dreaming.

Got my Silver E07 this morning. It came with a crushed 21700 battery. Is it still safe to use this battery? Top is caved in about 50% and bottom has a circular etch which is deep enough to easily catch a finger nail skimming over it.

Also came with the broken leg and screw in the wrong place. My first E07 with the 21700 battery charger that I ordered from ff never came so with nothing to charge the battery with, I used one of my 30Q button tops but it only had 3.8v charge and brightness was nothing special. Charging the 30Q as we speak. Have to say it's a beautiful looking light with the purple leds, nice job ff thank you. I did not notice any problem with the beam either. Seems the broken leg on the optics and the misplaced screw is not doing any damage as far as I can tell.

It's the deepness of the indention at the bottom of the 40T that concerns me most.

I think the deep circle on the bottom of the can is part of the cell. I don’t think that was caused by spring crushing.

My E07 came with 40T installed and both the top and bottom of my cell look much more crushed than yours. And the cell still works perfectly with no problems.

Yes, the clear anodize E07 features extra machining on the heat sink fins so they aren’t sharp.

Basically, Fireflies is seeing feedback and fixing problems in subsequent production runs. I wouldn’t be surprised if in a few months every concern we’re seeing today is fixed.

The dent on the top is nothing but that groove is way out of the ordinary.

Just did a google image search of the 40T and none of them show that deep groove. Can not be from the E07 cap either as the spring diameter is not so wide. What it seems is that the 40T I got in my E07 was used and abused in some other device before being shipped to me. I have a strong feeling I should send it off for recycling as the grooves in the bottom are just too deep.

Yes, that is very encouraging. The only issue is Nichia 219B LEDs are discontinued, so there is a trade-off between choosing them or the improved E07 in the future, if you are interested in those emitters.

contactcr, ever see 4K video shot on a full frame sensor? Bring a Rhodes mic and we’ll mod a few… :stuck_out_tongue: (The Rhodes mic isn’t necessary, dual mics on the 5D MkIV work just fine… I’ve just always wanted a Rhodes with a dead kitten)

Wait, what? TK, the center aux LED’s are supposed to be lit over 3.3V? Like, all the time when the cell is charged? Or just down at the low level as an early warning indicator?

Edit: When my E07 blinks out 3.3V there are still no center lights. At 3.2V the red lights are on and the outer purple aux lights are off.

Edit II: At 3.29V (measured on a meter) the center lights are off and the outer lights are on. I don’t ever see a green or blue center, only red and only then for a very short .2V period.

Edit III: At 3.29V I can see the red center lights blinking, but only if I look through the clear side of the center TIR, they don’t show from the front.

No, the inner ring (red LEDs) are only lit during a specific range of low voltages. At higher voltage, only the outer rings light up. There are no green or blue or purple emitters in the center. Also, the exact voltage where it changes seems to vary from one light to the next.

Without knowing the thickness of the bottom plate, it's impossible to know if there is a safety concern or not and based on the images I saw online, none of them have this indention. For lithium batteries, I've always followed the "when in doubt, throw them out" rule. The bottom ring almost looks like a factory fault and someone decided to let it go.

I have cells deeply indented in the base from overly stiff springs, mainly the little carobronze ones from FastTech… been using them that way for years. Deeply indented. Dang near lay a green pea in there….

The battery’s tail groove looks like it was just manufactured that way.

Google tells me this pic is a Lishen 2170SA 4000mAh 21700 cell. Dunno if it’s the same thing, but it has similar specs and the same tail ring:

In any case, it doesn’t seem like the battery is damaged.

It looks like the Samsung 48G also uses the same tail ring design. That’s just how the factory produces it.

Someone should check the length and width (WITH PLASTIC CALIPERS, DO NOT SHORT YOUR BATTERY) and weigh them. Lishen cells are also slightly longer than 40T’s which could explain even more.

Yeah I’ll probably just order a new Samsung 21700 40T and see what happens.

Good to know, thanks!

Hmmm interesting.

EDIT: Just saw your edit with an additional battery.

Klrman,I have two brand new 48Gs that came the same way from Battery Junction. The rings are not a result of being compressed. They are manufactured that way for some reason.

I believe it’s for safer venting?