Barkuti
(Barkuti)
April 8, 2018, 11:23pm
51
…
Thanks both for the input, The_Driver and djozz .
If properly dedomed, their throw should be fair.
Remembering this thread of mine , I've scored a few 4x MCPCB search hits and here they are for anyone interested (I like to find :-) deals):
Cheers
Thanks djozz!
The Samsung LH351D actually seems to have a larger die than the Cree XP-L.
I'd like 24 please. Thank you for arranging this.
s1m888
(s1m888)
April 9, 2018, 12:26am
54
10 for me please. Thanks.
how many lumens will i gain it i Direct Drive it with sony vtc5a or samsung 30Q, i hope i can get over 1500
bunnicula
(bunnicula)
April 9, 2018, 7:51am
56
I wouldn’t have known about this group-buy if maukka hadn’t mention the emitter in the Wuben group-buy page.
Andrey, please add 10 more for me. Thanks.
AEDe
(AEDe)
April 9, 2018, 9:04am
57
I did not expect such an increase in interest in 351D.)
But there is a problem. It is not possible to withdraw $ from PP , in Russia. Añd I don’t need so many $, on PP. So I should use PP currency exchange. It resulted in price increase.
This does not apply to those who have already written in the list.
The first 170pcs has the same price. After that price will be 1.7$(1.6$ for 20pcs+) and 5.20 registered post.
Interested in 20
How does these compare to Nichia 4000k 219c in tint? Less green?
bunnicula
(bunnicula)
April 9, 2018, 11:01am
59
Thanks Maukka!! I appreciate it.
They are XP-L sized. I think they should be compared to the XP-L2 90CRI 4000K 2-Step, which is very efficient, but has a terrible tint (Duv 0.6 in the low/mid modes with reflector - SC64c). So this LED is indeed much better, similar to the Nichia 219C 4000K R9050 (which has a somewhat yellow tint though). At high currents it is probably noticeably brighter than the 219C R9050.
EDIT: I just checked the datasheet. At 3A the Vf is only 3.28V and the thermal resist…
From maukka’s measurements:
Duv=0.036 Nichia 219C sm403 @ 700mA
Duv=0.018 Samsung LH351D 4000K @ 1000mA
Barkuti
(Barkuti)
April 9, 2018, 11:04am
60
Did maukka 's test hijacked this thread? :|
AEDe:
… So I should use PP currency exchange. It resulted in price increase.
This does not apply to those who have already written in the list.
The first 170pcs has the same price. After that price will be 1.7$(1.6$ for 20pcs+) and 5.20 registered post.
And now the last one to the house is a rotten egg? @#$%! Sorry, don't mean to be gross but hadn't yet decided how many. :-/
Can you take €uro bank transfer AEDe? :-D LoL!
Grrr 16pcs for the LH351D. I'll add some LH351B units later.
Cheers
djozz
(djozz)
April 9, 2018, 11:25am
61
The price is still very good
I found out over the last years that knowing that a certain led exists is just the beginning, finding them for sale is often very difficult, especially if you want a specific tint or bin. I’m happy that this specific nice led is made available for the humble flashoholic.
AEDe
(AEDe)
April 9, 2018, 3:00pm
62
I’ll find out about this , but I think I can not. I havent got euro bank account.
About 351D I’ll take them all(~400). So you can take your time.
But if you want 351B or something else - be quick))
They also offer the Luxeon MZ 3V with 5700K 90CRI . That is a great LED! It’s very efficient for a high-cri LED, has a very low Vf, tolerates a high max current and has a perfectly even tint.
EDIT: it’s the 12V version.
I’d say I am interested in 3.
Sign me up.
Edit: Add another 3 to the mix. Total of 6.
Agro
(Agro)
April 9, 2018, 8:36pm
65
The way I see it that’s the 12V variant.
BTW CRI 70 is here as well:
https://eng.e-neon.ru/power-leds/high-power-led/lmz7-sw50
I’ll take 9 of these whenever they are available. Thanks!
Yeah, I must have overflown the specs too quickly. Thanks!
AEDe
(AEDe)
April 10, 2018, 7:21am
68
The second bunch is 320pcs*351D in total. ~150 are still vacant.
Hey AEDe. Could you perhaps add an additional 3 LEDs to my interest? A total of 6 LEDs would be great.
I’ve not been added to the list yet?