E07 or D4S?

[EasyB]

@Firelight2

However, it is possible this could be causing an issue with SST20 emitter version. But then again… the blue-shifting people experience with SST20 might be caused by too much current and not heat. No way to know for sure until someone with one bevels the bottom of the star and adds thermal paste.

Even with a 30T each SST20 would get less than 4A which is not excessive with proper heat path to the shelf.

[Firelight2]

@EasyB

@Firelight2

However, it is possible this could be causing an issue with SST20 emitter version. But then again… the blue-shifting people experience with SST20 might be caused by too much current and not heat. No way to know for sure until someone with one bevels the bottom of the star and adds thermal paste.

Even with a 30T each SST20 would get less than 4A which is not excessive with proper heat path to the shelf.

May very well be heat which is causing the blueshift with SST20.

But the gold standard is to test it. All that is needed is someone with the SST20 model to remove the star, bevel the lower edges slightly with a handfile, scrape off the stock thermal paste and apply Arctic Silver 5 and then reinstall. See if that fixes it. Shouldn’t take more than half an hour.

[lotrbfme]

What version of the sst20 is causing the blueshift? How does it looks like? I have the 4000k version running in a 40T and always on turbo etc without a problem

[smithd1]

I have a D4S and really enjoy it.
No issues, plenty of light and good battery capacity.

[SKV89]

@klrman

@P33

I bought 2 lights from them and one took almost 3 months to arrive (was actually sent 1,5 month later then I was sent fake tracking number)

Think I got one of those fake tracking #’s too. FF won’t reply to my email either. All I asked was “what tracking site are you using that shows my e07 arrived in Canada already as the number you gave me does not show up anywhere?” Crickets ever since. This was the one I ordered almost 6 weeks ago. The second E07 I ordered about 3 weeks ago has a real tracking # and I should see it by the end of this week.

I think the whole tracking system in China is screwed up. I’ve ordered many times from FF and sometimes the tracking work after weeks and sometimes it doesn’t at all. The tracking order for the four E07 I ordered never worked but I received it in about 3 weeks time, which I thought was amazingly fast. Some other orders can take from 1 to 2.5months to arrive. Very random. Sometimes packages get stuck at HK customs.

But regardless of the shipping issues and other reported issues, I still love the E07 like mad because it’s so freaking bright for the size, looks great, max ramp can be sustained for long periods outdoors making it real practical. I admit the E07’s build quality cannot compare with the two D4S but I use the E07 much more because of the smaller size and higher output of the E07

[Nicolicous]

Either lights…you won’t regret

I tend to like E07 more than D4S due to the size factor but E07 have poor quality control.

[klrman]

@SKV89

@klrman

Think I got one of those fake tracking #'s too. FF won't reply to my email either. All I asked was "what tracking site are you using that shows my e07 arrived in Canada already as the number you gave me does not show up anywhere?" Crickets ever since. This was the one I ordered almost 6 weeks ago. The second E07 I ordered about 3 weeks ago has a real tracking # and I should see it by the end of this week.

I think the whole tracking system in China is screwed up. I’ve ordered many times from FF and sometimes the tracking work after weeks and sometimes it doesn’t at all. The tracking order for the four E07 I ordered never worked but I received it in about 3 weeks time, which I thought was amazingly fast. Some other orders can take from 1 to 2.5months to arrive. Very random. Sometimes packages get stuck at HK customs. But regardless of the shipping issues and other reported issues, I still love the E07 like mad because it’s so freaking bright for the size, looks great, max ramp can be sustained for long periods outdoors making it real practical. I admit the E07’s build quality cannot compare with the two D4S but I use the E07 much more because of the smaller size and higher output of the E07

Yep, tracking is all over the place. I just got one of my E07's today, the clear one and it looks beautiful, the best in my collection. XPL-Hi 6500k, although I'm pretty sure it is 5000k. My purple aux leds are very dull and dim which is a disappointment and am pretty sure there are different grades in those bins as it looks like Dale got the best purple leds out there from what I see in his pictures. Brightness screws on the board do nothing either. When I get a charger for the 21700 40T the xpl-hi should shine. It's ok with a 30Q but about the same as my ODF30C so I need to see it with the stronger battery. Overall I still love this light a lot and am glad ff created it.

[nick779]

@Firelight2

Personally, I think most of the “problems” reported with the E07 are overblown. This is a truly excellent light and I highly recommend it.

• Improper thermal paste under star - possibly no effect or even beneficial on some E07 models. It has little effect on the performance of the XPL HI versions for instance. Heat sinking is still quite adequate, and the head still gets hot when turned on high or turbo. In one respect, the lack of proper thermal path might even be beneficial as it lets you hold the light longer without burning yourself.

That’s a good thing in my opinion, because for small pocket rockets like this one, the weak point is how much heat your hand can take, not the LEDs. The purists will object that it’s the “wrong” way to do it, and the LEDs are being damaged or underperforming. But from a practical perspective, the LEDs are going to outlast the flashlight no matter how much they are abused. And what is the point of having proper thermal path if it means the light has to ramp down even faster to prevent your hand from being burnt? … the net effect is even LESS sustained output.

I greatly beg to differ. XP-L HI puts out plenty of heat when direct driven, and when the driver has no clue how hot the star is because of a crappy thermal path it cant throttle the light properly. Heat kills electronics including emitters, have you ever seen a light desolder the emitters from overheating before? Its unacceptable that the star doesnt seat properly at get contact on 90% of the DTP MCPCB.

[ZoomieFan]

@SKV89

I think the whole tracking system in China is screwed up.

Sure. Or differs from package to package.
I often order from Banggood and Aliexpress.
Tracking often is “Package left seller/China” or something similar. The rest of the journey of the package is “current status unknown”
Yesterday I received a package and it was announced on the app on my phone when it would be delivered.
Shortly after I got the package AliExpress sent me an email the package was delivered. So their system works flawless.
Sometimes….

[ZoomieFan]

[quote=kanton]

@Firelight2

Fireflies should AT LEAST have issued a warning to refrain from using the 30T or similar high amp batteries if that really is the issue.

That might be a good solution for some or even many, but not for me.
I want to use my cells as universally as possible. Also prone to errors. A few years down the line many cells may deliver too much juice for the light.

[Kingjohn]

I would go for a D4S.

I have both, the D4S with Nichia 219Cs (besides some additional D4) and also a new
Fireflies E07 with Nichia 219Bs.

I love the tint of the 219B leds and also the form factor (21700) of this light.
But that’s it!

These are the flaws of the E07:

• it damaged my Samsung 40T battery (which is unprotected and exactly according to specs) , because the battery simply doesn’t fit into the light.

• The tube is sharp and hurts your fingers if you hold it in your hands. Machining is bad

• Two LEDs on the button can never be switched OFF

• button is not assembled correctly and feels very very cheap

All that has NOT been done by Fireflies is great. (Firmware, LED tint, AUX Board, etc…)
All the Fireflies is responsible for is somewhat broken….

I will not buy anything from them again the next months…. (a long as those things have not changed)

[mortuus]

Looks like an interesting light but with all the QA issues i have to pass, still waiting for my d4s since xmas but should be here soon, but yeah they need improve the issues if they want build a brand people can count on.

I mean if emisar for similar price can offer a great light with almost no issues etc then fireflies shouldnt skip on quality either thats just bad for this price.

[azulikit]

Where is the best place to order this E07?

What LED’s do I need to make the 6900 LM? I’m guessing the V2 5000’s or V3 6500’s? Banggood doesn’t list the LED’s for 6900 LM I think.

FF Website only says blue utility lights. Have they gone away from other colours?

Thanks

[wstrachan]

I have both and like them both equally. Both have XP-L HI emitters in CW. Raw output isn’t a comparison because the E07 has the emissar beat. TH emissar will run it’s turbo setting longer and that is no shocker right? I would prefer the E07 though for fit, handiness and raw power when it’s needed. I wish the E07 had a magnetic tailcap but that my only complaint.
Both lights have worked flawlessly since purchase. The E07 I got a couple months ago, the D4S about a year now.

[azulikit]

@wstrachan

I have both and like them both equally. Both have XP-L HI emitters in CW. Raw output isn’t a comparison because the E07 has the emissar beat. TH emissar will run it’s turbo setting longer and that is no shocker right? I would prefer the E07 though for fit, handiness and raw power when it’s needed. I wish the E07 had a magnetic tailcap but that my only complaint.
Both lights have worked flawlessly since purchase. The E07 I got a couple months ago, the D4S about a year now.

Where did you buy your E07 from?