Looking into filters, i found Lee Zircon LED dedicated filters.
Maybe better to discuss this in Clemence’s topic.
On the lux-rc site I see the following comment:
OK, they use a custom throw lens which is better than stock. But nevertheless they consider dedomed 219b a good option for throw.
Does anyone here have experience with that?
I sliced the dome on a 219C once and the throw was pretty good. Although a full dedome has proven pretty hard and it seems that those that tried it were not that impressed.
Personally I won’t dedome an LED due to the tint shift.
As regular user I would not recommend you looking for lux-rc technologies. You dont compare family car with F1, right?
First of all, lux used another leds. I have mensioned this several times - some 219bs have smaller dies (and it is almost unreal to get this leds if you are not able to order full 2500 leds reel).
Secondly, he rarely use hi-cri nichias and prefer regular version (which have xp-g2 top bin performance).
Third, mbc is not dedome, this is custom dome for better throw without lumens loss.
Add custom silicone lens, and now you can compare it with $3 xpl-hi under $1.5 10507.
I have dedomed multiple 219Cs. It’s quite hard as most of the time some of the silicone gets stuck on the phopshor, but with a sharp blade you can just barely remove it.
Tint is very warm (about 3000K):
LTR: 5700K nichia 219B, 4000K 219C with dome, 4000K 219C dedomed. White balance set to daylight
CRI doesn’t seemed to be affected. (Maukka confirmed that CRI doesn’t shift a lot with dedoming).
Throw is about what you would expect: About the same as XP-L Hi but thighter beam. (this is by eye and judging from distance so might not be 100% correct)
Thanks for the great beam comparison. I like that you used daylight white balance and shot all 3 beams together, and that one of them gives a Cool White reference. That all works really well together!
Interesting, thanks.
It seems there are several people who re-dome leds already:
- Oveready
- Lux-RC
- Vinz
- (never seen confirmed, but probably saabluster too)
Oveready buys Lux-RC light engines, so maybe one of them buys redomed LEDs from the other?
Also, do you have any info on the custom lens?
Dedome is not something you can be sure in finel result. You can find some old cree datasheet about chemical compatibility of leds with silicone dome - even regular leds require some limited conditions, otherwise output can decrease much faster than expected. Nobody knows how much output you will have after 100, 10 or even 1 hour of light with dedomed led.
Lux dont practice chemical dedome (only mechanical).
Lux applies custom dome to prevent fast led degrate.
Finally - his modules work inside sealed area without oxygen.
Again, I dont feel this information usefull for blf modders - since xpl-hi are available (black flat etc.)
I suppose you can find enough information about silicone optics pros and cons. Most optics manufactures started to use this material 3-5 years ago.
I have never seen Vinz re-dome LEDs. He has a method of removing th green tint after de-doming though (he calls it diamond treating).
There are some modders here who build hundreds of lights per year with dedomed LEDs. I have never read a single post in the last 5-6 years where somebody measured an actual loss of performance of time.
I also has Osram Oslon LCW CQAR.CC-MR-6L-L2 (from pargos-shop, 2 orders), and use it in 3 my flashlights with TIR-optics.
And I also can say : no any grinnich .
Perfect white color, slightly warm light, ~3900-4000K (color rendering slightly nicer, than in 2 my FC mkIV HiCRI Zebralight’s).
Dear maukka, pls. wrote full name and color group of this measured sample Osram Square LED.
It’s CQAR.CC or CSSRM1 ?
It was sold to the member Chouster as a GW CSSRM1.BM-MPMR-XX55-1.
I shut out osram for myself- low lm/w and power dissipation. Samsung is best as budget hi-cri
thanks.
Yes, all hiCri led has lower low lm/w efficiency, that ordinary led’s, and these Osram Square series isn’t a “lumen champions”, but has excellent color rendering and (imho) tint (CQAR.CC 4000K 6L group).
If you prefer samsung 351D tint - it’s your choice.
Are you talking about the same Oram in the Maukka test above? If so that thing has a whopping DUV of 0.0093, which is great for making horror films.
both are Osram Square family, both 4000K hiCRI, but Maukka tested CSSRM1 with different color group
Where can I get some of these LEDs?
That is the question many of us are asking as well.
Clemence has not been able to get anymore of them and no one else has been able to as well.
I have a back channel hunt going to look for some but nothing so far.
At this point I am thinking about seeing how large of an order would be needed to get a batch made.
Dooooo it! 