[GB ended,discussion only] CRI > 80+ NICHIA 2000K-6500K [E21A/219B/219C/319A/144A/757GT-F1(Optisolis)]

E17A is just a smaller version of the E21A? That doesn’t sound too interesting. Or are there anything I’m not aware of?

The color (RGBA) E17 can be made into limiless array. 4x E17 will be 3535 equivalent but with so many exciting possibilities and choices.

- Clemence

Just don’t drop them on the carpet… :partying_face:

Can you bring some good 5050’s as well?

4000k 90 cri lights are making my 3C xml2 mountain bike lights almost unuseable.

There are none. Only 3000K XM-L2s are available with 90CRI. They are very inefficient and have yellow tints.

Show me your bike lights. Quadtrix e21 might solve your problem easily

Thanks for the reflow advice. I will try to incorporate it as best as I can with available equipment. And by the way, your store is a joy to use. The layout and order process are excellent. Good thing I can’t just order nichia LEDs for the whole house or I’d go broke :smiley:

Just want to say after a week of usage, I really enjoy these modded Tiara’s alot. I use them every night now while watching TV and I’m amazed how well they can maintain constant lumen without stepping down, which makes it very practical as room lighting.

What I noticed is that the mixed CCT result in rosier tints. The 2x 2000k with 2x 3000k Tiara produces much rosier tint than the 2000k and 3000k version. The 2x3000k with 2x4000k version also produces rosier tints than the 3000k and 4000k version.

The 2500k is my fav right now for watching TV. 4000k is best for work. I thought after a while my eyes would adjust to the 2000k like with other color temps but it still appears too warm for me.

I just received my latest order today.

Thank you very much again - now my Manta Ray C8.2 build with 4500K CCT E21A quad is complete, and while it has one slightly noticeable flaw, it is already very impressive.

I used an XM-L2 gasket from a Convoy S2+ host to prevent the reflector scratching the board (while fastening the bezel), but I think, it raises the reflector a bit too much.

The reflector with this host has a rather coarse OP pattern, so it helps much with eliminating the donut hole, but it remained still a little bit visible. I expected this, and already ordered some thin translucent plastic spacers in the last third of September from KD, so I can lower the reflector a bit - I hope for a just a little more output and even better correction for donut hole. I added GITD ring and blue AR coated front lens as well.

I also swapped emitters in my red and blue Convoy S2+ host (red now has a 2000K CCT, and blue now has a 6500K CCT single E21A) - but to be honest, now it is very difficult to center 20×12.8mm Yajiamei optics because of the smaller footprint - but finally I was successful with a 15° frosted one for each.

Today was a happy day for me.

(I liked the packaging as well - light, and protective.)

Nice. What driver did you use in the Manta Ray C8.2?

Unfortunately the lights do not use mcpcb’s. Instead they have normal printed circuit boards with lots of vias to transfer the heat.

The helmet light has three Ultrafire optics,2 medium and one spot. Quadtrix probably won’t work that well. The bar light has three medium and three flood reflectors with all six leds in series powered by a boost driver running off a 3S2P battery pack. Low VF would help the boost driver and between the different shaped reflectors and all the led’s Quadtrix might be very good.

I have thought of making up stencils and using some solder mask repair paint to make soldering them on the existing boards possible. It just seems like it would end up being more effort than it’s worth with too many places for things to go wrong.

I used the ‘default’ for that host (LC15). It seems to be working fine, and I like the mode spacing as well ( Very Low /more than moonlight, though/, Mid, Mid-High, High).

On High, I can see, that the emitters switch to about ~250K cooler CCT based on my guess, compared to the Mid-High setting.

Probably I could use a driver with 4A max current instead of 3A, but then I guess, tint would be changed more.

Tint now is surprisingly almost perfect neutral with greens feeling a bit undersaturated, but color differences are rendered very exactly. No visible sign of tint shift around the hotspot, at all (one could measure, but I guess, it could be still very low).

I have a Jaxman X1s 5000K 90CRI for comparison, and these are two very different worlds (I like both of the, though).

I think, it would be worthy to have a flashlight with 7-9 E21A emitters arranged like in DQG Mini 3rd, or FireFlies ROT66 (or even 12).

UPDATE 181108:

The Armytek Tiara C1 Pro is here. There were some you guys asked me about this earlier, but I don’t quite remember all of you. I can only remember:
.

- SKV89 & friends: 2pcs (Tira C1 Pro)

- Bob_mcBob: 1pc (Wizard Pro)

- Slayer1 & friends: 2pcs (Tiara C1 Pro)

  • Boris & friends: 5pcs (Wizard Pro)
    .
    I’ll announce them in the store tonight. Due to my slow processing speed, I rather have all the orders placed before I start to make them in one single batch. Besides, I forgot to order the Yajiamei 60° optics. This alone will takes about 2 weeks from China to Indonesia.
    So, those will be shipped around early December 2018.
    And I don’t plan to keep selling these Armyteks in the future because my custom order seems too complicated for Armytek to fulfill. Will instead post a complete modification guide later in BLF, so you guys can do it yourself.

Direct link to the product: https://www.virence.com/product-page/Custom-TiaraC1Pro-4xNichiaE21A-R9080

- Clemence

UPDATE 181210:
Batch of orders #10325, #10326, #10328, #10329, #10330, #10336, #10339, #10341, #10343, #10344, #10345, #10346, and Invoice #29 are all ready to ship.
I supposed to ship them today but I checked the potting compound wasn’t fully cured (it will cured itself within a week), to make sure I put them back in the oven for another 6 hours.

- Clemence

Not sure I am getting the exact difference between type a and b optics

Yes, slight difference on the white wall. B optic will give broader more even hotspot. The A while creates more center lux, also produce (dimly) wider spill. I prefer B for close works.

- Clemence

Thank you!

can this be still ordered?.
cheers

There are currently still six three pcs Tiara left in the store: https://www.virence.com/product-page/Custom-TiaraC1Pro-4xNichiaE21A-R9080

- Clemence

thanks , sent you a PM my friend.