The Yellow Q8 (added a  test of a pink Epileds 5050 led in post#18)

iamlucky13 · 2019-01-20T00:40:37.000Z

Interesting choice of LEDs. Seems like it would be fun to play with.

Do you think the spectrum is different from what other manufacturers market as phosphor- converted amber?

djozz · 2019-01-20T00:58:26.000Z

iamlucky13:

Interesting choice of LEDs. Seems like it would be fun to play with.

Do you think the spectrum is different from what other manufacturers market as phosphor- converted amber?

PC-amber is very similar but a bit more orange. I just measured a PC-amber flashlight (with a ProLight PC-amber led) and the peak in the spectrum is just a bit more towards red, colour temp is 1900K. The CCT btw is, just as the yellow one, way above the BBL. Left the yellow hotspot, right the PC-amber hotspot:

Sirius9 · 2019-01-20T01:13:38.000Z

CRX:

Cool :+1:

Actually, quite warm

MtnDon · 2019-01-20T01:27:26.000Z

vwpieces:

Fresh snowfall here, bet it would look cool at night on it.

Don’t eat the yellow snow

MRsDNF · 2019-01-20T02:05:38.000Z

Thanks for the testing djozz. Are you leaving these leds in the Q8 long term?

Yellow snow, you can have it.

CRX · 2019-01-20T02:07:32.000Z

Sirius9:

CRX:

Cool :+1:

Actually, quite warm

vwpieces · 2019-01-20T04:20:10.000Z

MtnDon:

vwpieces:

Fresh snowfall here, bet it would look cool at night on it.

Don’t eat the yellow snow

Ewww, didn’t think of that.

hank · 2019-01-20T05:22:13.000Z

Wow. I”m envious, as I have made a lot of amber lights to avoid screwing up my nighttime sleep cycle.

djozz · 2019-01-20T10:18:12.000Z

hank:

Wow. I”m envious, as I have made a lot of amber lights to avoid screwing up my nighttime sleep cycle.

Maybe 3300 lumen of yellow is not ideal for your sleep cycle.

djozz · 2019-01-20T10:35:42.000Z

MRsDNF:

Thanks for the testing djozz. Are you leaving these leds in the Q8 long term?

It probably depends on Luminus. I think it makes sense that now that they started with the other cool and neutral 70CRI CCT’s of the SST-40, but not 4000K and warmer, that at some point they finish the SST-40 line-up with warm 95CRI versions. One can hope, right?

KawiBoy1428 · 2019-01-20T11:09:45.000Z

Whats up with the Giant Gangster Whitewalls on the chick bike, Is that a happening fad over there for cyclists or a safety thing? The Yellow Bile colored beam really makes them POP!

djozz · 2019-01-20T11:26:22.000Z

It is very common to have a reflective strip on the tire over here, it helps a lot with safety. But this particular bike seems to have reflective rims instead.
Same bike in daytime:

djozz · 2019-01-20T23:37:21.000Z

djozz · 2019-01-20T23:48:47.000Z

Cereal_killer:

Really looking forward to your test results on the pink one when you get a chance sir.

I almost bought some big pink COB’s last month but didn’t want to deal with the inefficiencies of Chinese COB’s, I didn’t know pink epileds existed.

There you go ^
It would make sense if the behaviour was similar to the yellow one but it seems a quite different led. It did not even die at 10A when I stopped the test.
I made an S2+ shorty with BLF-A6 driver to check the led. It is indeed very pink and puts out 400 lumen on a 18350 battery. With some bypasses and such it should do over 600 lumen.

Lexel · 2019-01-20T23:48:15.000Z

respect you got the rosiest tine ever achieved in a flashlight

Kawiboy his camarea has no or not good image stablisation

djozz · 2019-01-21T00:06:54.000Z

Yes, just checked, my ROT66 (219B V1 sw45 R9080) at max looks yellow next to this one :party:

About the bike shot, it was my phone camera, I did not hold it still enough for the beamshot.

Lightbringer · 2019-01-21T00:24:21.000Z

Cereal_killer:

I almost bought some big pink COB’s last month but didn’t want to deal with the inefficiencies of Chinese COB’s, I didn’t know pink epileds existed.

Not an Epiled, but got some “bead” type pink LEDs offa Amazon. They’re pretty interesting. Got one in a drop-in, which ended up in a pink/purple/whatever ’501 that I got offa FT.

Call it a Barbie-Light…

Hang on a sec…

Here ya go. Go crazy…

https://www.amazon.com/gp/product/B00MTFE4YM/

(Damn, got ’em in 2015!)

staticx57 · 2019-01-21T03:01:19.000Z

This is really cool!

CRX · 2019-01-21T04:55:41.000Z

staticx57:

This is really cool!

Aparently not.

djozz · 2019-01-21T23:04:54.000Z

I was bored and started toying with a few colour flashlights. I thought that if I could fill in the spectrum of the pink one with a green (530nm XP-E2) flashlight, it might get close to a usable white. And behold, after some varying light levels I even got 80CRI close to the BBL with a great R9. . And it shows, when sliding the pink and green hotspots until they overlap all of a sudden a clear and pleasant white appears that gives fine colour contrast. It is not that I do not know that it works like this, but it is much fun to see it happening before your eyes.