LG high CRI LED E2L flashlight-maybe this LED is unknow to everyone..

The LED on the right is identified as being a Nichia in other advertising photos.

Ah.

No thermal compound? Thatā€™s not good, especially when JAXMAN has a picture on their website showing that they apply (too much of) it.

That is very strange. I have a JAXMAN E2L host that I think is top notch, so Iā€™m not trying to bash them. Iā€™m just dumbfounded.

Maybe JAXMAN considers this as ā€œglueā€ and since we requested that they not glue their flashlights, they decided not to apply this ā€œheat conduction glueā€?

I prefer that there is nothing in there

The glue that uses JAXMAN is ceramic type
After curing, there is no way to remove it if is not with a chisel or an emery stone

Hey, well crap, i bought 2 triple boards of theseā€¦
Not in yetā€¦
In fact, waiting for many orders a.t.m., as if the postal gods are not on my side latelyā€¦

Same here, packages are not arriving at all :frowning: maybe Chinese holidays consequences ?

Urgh. I officially withdraw any interest in lights with those LEDs.

It really goes to show how much R&D effort Nichia must have put in to create their 219A/B/C LEDs, though.

Thank you for the test data, maukka. Itā€™s much appreciated.

Iā€™d also like to join previous posters on this thread and add my appreciation to Jaxman for giving us a chance to find out about this new LED. No luck this time, but he didnā€™t know that beforehand. If things had turned out differently, he might have been handing us the next big step in high CRI lightsā€¦

Man, itā€™s unfortunate that I bought a triple mcpcb with this led before the tests showed up

Man, itā€™s unfortunate that I bought a triple mcpcb with this led before the tests showed up

You say that twice, i ordered twice the triple boardā€¦ :person_facepalming:

I think itā€™s very nice of most of you to thank Jaxman for the opportunity, but i feel quite disappointedā€¦
Jaxman has a reputation of good tints, which may be easy when you use Nichia LEDs.
But i didnā€™t expect this LG LED, when itā€™s an ugly tint, to be sold by Jaxman.
So i expected a nice LED, not a greenish tinted one.

But it is what it is, canā€™t win ā€™em allā€¦
I donā€™t blame Jaxman, but i just expected better.

For photography, the LG H35F0 could perform quite well considering its overall score to TM-30-15 standard despite its Duv score.
2 LG coupled in a quad with 2 nichia 219C 5000K could be nice as they are quite complementary for better colors fidelity. The nichia lacks of blue fidelity compared to the LG, and this last one lacks of red fidelity.

MF-01ā€™s Nichia:

E2Lā€™s LG:

Not too shabby.

EDIT : both superposed in Gimp to show the highest value for each 99 samples, could be different in reality, but the Rf score (average) should be higher than the bar on the graph :

So what you all is saying indirectly is that jaxman photoshopped the reference photo (the one with the LG led and the Nichia led side by side) or used a bad camera or whatever that makes the photo not describe what the light of that led looked like?

Or

You never looked at the photo and now when you got and see how it performs you get disappointed?

Or am I missing something here?

Next time someone tries to introduce a new led you all should ask for some more beamshots on different things or somethingā€¦

.

Donā€™t recall the ratings, but youā€™d need to make sure the Vf for the 2 types is a nearly exact match, else the 2 with the lower Vf will be almost fully on and the 2 with the higher Vf will be pretty much off (applied voltage below VĪ³).

Unless you run them in series. That reason is why most of my lights going forward will be boost driver based.

If LEDs wired in parallel, but I was thinking of this by wiring them up in series with a boost driverā€¦but really donā€™t know as I didnā€™t test this yet.

You are correct Tally-Ho, they would work well in series, I have a few lights now with highly mixed Vf emitters in series, and I really like the freedom to mix tints however I see fit without worrying about mixing voltages too.

Either way, i expected it to be a (more or less) safe bet, and maybe not as nice as Nichia, but good none the less.
Iā€™m sure others feel the same disappointment.
It would have been great to have a high power high CRI LED, for applications where the Nichia 219 is just a bit too low power (and gets too hot).

O wellā€¦

I did a voltage+output test on this LG H35F0 from Jaxman but am slow in posting it, but looking at the numbers: when voltage is compared to the 219C: up to and around 3A it is almost identical (3.27V) and when current goes further up the H35F0 curve is a bit steeper than the 219C curve.

So also when connected in parallel they should go together fairly well.

Jaxman should start to sell minus green filters :smiley:

I wouldnā€™t have thought to this by myself if I hadnā€™t seen people mentionning and doing this on BLF. I was checking my bookmarks a few minutes ago and saw that you were the one I seen doing this recently in Clemenceā€™s thread. Sorry I didnā€™t remember that it was you :person_facepalming: Thanks a lot for the idea. :wink:

Thanks for the info djozz. Itā€™s always nice to learn something from one of my BLFā€™s heroes.

That wouldnā€™t help with the big tint shift in the beam though.