Fireflies E07 Copper vs regular differences. (mini review)

LED Flashlights – General Info
1

Disclaimer: sometimes manufacturers revise. The E07 was bought q2 2019 (and should be a v2), and the Copper was bought q1 2021

1st I noticed was it is filthy and gritty (seems to be copper after looking at the toothbrush I used on it) -> https://photos.app.goo.gl/yuobio9m4QpnEgNP7
Washed that off with some Hornady One Shot lube (similar performance to Frog lube)

2nd thing I noticed, why did they include a regular lanyard? There’s nowhere to put it, the hole on the fins is not good for anything but a string…
https://photos.app.goo.gl/qK9v5jrWPUTYgiGo8

3rd thing I noticed, the beam is a bit more focused (and less smooth) than the original which has 25 deg TIR. Like 10-15% narrower. You can even see the LED looks slightly larger through the optic.
https://photos.app.goo.gl/5Kz8AiwgMGy6ebvu6

Is the optic just farther from the LED? The lens doesn’t look different to my bad eyes.

#4, the switch is tighter (and harder to press - similar to the new buck driver series)

Lastly, just a minor complain, aux and switch LED color weren’t what I ordered, but not worth fussing over.

Update: Got around to taking both apart for a closer inspection. The TIR is unquestionably different, as is the PCB
https://photos.app.goo.gl/dYCwRiDeSd7ePXcn9

2

As a thought, if you didn’t get the right aux and switch colour (which is something i would personally want sorted) did you get the main LEDs you asked for? I don’t know if there are options but a different LED could account for the difference in beam. Your pic isn’t sharp enough for me to see though they look like quite different tints.

3

Unmistakeable rosy tint of 219b. they aren’t “on”, the aux emitters are just different brightness

4

I just tested it, specs are very similar to my other 219b’s, but the duv seems lower (maybe from copper body)

5

Odd that was said, considering there was so much paste that lifting the optic revealed a ton on its pegs…

6

Got around to taking both apart for a closer inspection. The TIR is unquestionably different, as is the PCB
https://photos.app.goo.gl/dYCwRiDeSd7ePXcn9

7

Regarding your first observation (gritty tail threads), my NOV-MU (delivered this March) had the same problem. I suspect the tools for making the square cut threads are worn out, causing uneven or gritty edges.

Did lube help? I tried high end grease, but it still felt rough. Only after I used high-grit sand paper to smooth rough edges out, it was smooth.

8

I didn’t mean the threads are rough, I literally meant they had dark grit in them, used a toothbrush to wash that junk out if i remember right

The nov-mu turns on as you screw the head on, anodization is not conductive…this shouldn’t occur, normally. Nov-mu doesn’t have square threads on the anodized side, you should not be unscrewing the unanodized back end. It’s kinda bizarre they didn’t use square threads on both sides