Comparing 20 LEDs (with and without high CRI) in 14 Convoy s2+: final personal observations

Yeah, I think there are many differences, so the more the better :D

I was looking at Kaidomain for P60 drops, but they don't have that many LED choices..

oh, build my own P60's.. that possible as well.. hmmm maybe a better option.. (at least cheaper)

hold on... I'd like to compare them side by side...... so probably not an option, unless I get more P60 hosts :D

Maybe it would be smartest to do the comparison without any optics. That’s one variable less.

Is your goal to compare them side by side? Or will individual tests do?
If so, i would suggest a bench power supply with a proper heatsink like Djozz uses for led testing,

I'd like to have them installed in flashlights.. so I still think the S2+ is probably the best option to go...

Maybe add some DC fix to smoothen the beams.

$3.69 Empty Aluminum Drop-In Module w/Brass Pill (2-Pack) 2-pack - 26.5mm P60 sized / smooth aluminum reflector at FastTech - Free Shipping

a two pack is mighty enticing ? that's less than $2 a piece

Convoy has consistent quality, which is a big pro, and as said the S2+ is one of the cheapest options. Cheaper options might give you less quality and you may end up with unreliable parts which are not representative enough for a good comparison.

And separate pills still dont give complete Flashlights. A complete Flashlight is probably just a few dollar more.

Wurrkos has a package deal to buy all three of their fc11. 2700k hi cri, 4000k hi cri, and 5000k low cri. Prepare to park the 5000k because you ain’t gonna like it. As I said in the other post, it’s not just about the cri. 3 to 4k and hi cri is The sweet spot.

I prefer to have only 1 CCT, but since there are still a few LEDs that don't have a 4000K option, I prefer to go higher (4500K) instead of lower (3500K).

So in terms of popular 3volt Hi CRI LEDs around 4000K, what do we have?

  1. Luminus SST20... 4000K... CRI95
  2. Nichia 219C R9050... 4000K... CRI90...
  3. Samsung LH351D... 4000K ... CRI90
  4. Nichia 219CT... 4000K... CRI80

Some LOW CRI LEDs around 4000K:

  1. CREE XP-L2 HD V3 5A 4000K (Low CRI)
  2. CREE XP-L HI U6 5A3 4000K (Low CRI)

But some are only available in other CCT and low/high CRI

So these are optional:

  1. CREE XT-E R4 4D 4500K (Low CRI)
  2. Nichia B35AM R9080 4500K CRI?? (this is 6V)
  3. CREE XP-G3 S5 5C1 4000K - 4500K (Low CRI)

I'm probably leaning towards the Convoy S2 (not S2+) at Fasttech, it's only $9 without driver and LED.

https://www.fasttech.com/products/1618/10002463/1277401-convoy-s2-diy-edc-led-flashlight-host

And which manufacturer has 2 LEDs with the same CCT but 1 with high, and the other in low CRI?

Those xp-l’s have amazing tint and they are still 70 cri. The tint, not the CRI, makes them really feel like a high powered 219b sw-40/sw-45k mix. I use 5A2 and 5A3 XP-L Hi’s often when I want great tint, great output and decent CRI.

I went through this comparison phase as well. I did and still do it with P60 dropins, They are easy to build, they are cheap and they come in flavors… SMO and OP reflectors, triples and quads. I really do wish SolarForce was still around. Their dropins were decent and their reflectors were very well designed. Their drivers not so much, but that is an easy fix as well. The KD reflector dropins are pretty darn nice as well. They have a driver retaining ring, so no trying to heat the pill enough for a decent solder connection. I did really like the SolarForce low voltage driver as well, have used it in a few P60 aa/14500 builds, but they are long gone as well. Moved on to Convoy 4 mode AA/14500 drivers and with the 2xAA/2x14500 driver on the way, I can now get a decent driver in my dual cell lights.

You forgot the famous 219b

I did not notice he missed that one! Have shells with early and late production of each bin I could get my hands on. Do not miss that one!

Do any? Maybe between a version 1 and 2 emitter? Maybe in the Cree lineup with xp-l’s or xp-l hi’s? Now you are going to make me dig! Maybe Nichia with the early iterations of the 219b, I seem to remember 9080, 9050… were there others?

I remember when a cri of 70 would have been a godsend! I think that is why the xp-l hi’s at more or less 70 do feel pretty good after the days of the xp-g and xm-l.

Doesn’t Samsung manufacture LH351D in 70 cri also?

I think in only some CCT’s?

Get some Cree from Mouser

LH351D 4000K 70cri
LH351D 4000K 80cri
LH351D 4000K 90cri

Well, there is the answer! LH351D come in CRI flavors!

Those two and the XHP70.2 are the ones that first come to mind.