1. Yeah, I’m going to be buying it, then swap the emitter.
And yes, if you see 3-9V, it means it is using a buck driver.
2. The best LED for pure raw output would be a 5000k 70CRI LH351D,as that is the most efficient single 3V LED on the market.
With a buck driver and a 2S driver, you will be getting the best constant output of a single 3V LED, at the cost of runtime compared to a 90CRI 219C due to a higher forward voltage.
BanL
(BanL)
June 6, 2018, 8:03am
958
Hi AlexGT
Sure.
I will start to take a look on this branded LED.
Thank you
Ban
djozz
(djozz)
June 6, 2018, 8:16am
959
I see. You used the 17mm driver pictures for the 20mm version also, that was why I was confused.
BanL
(BanL)
June 6, 2018, 8:26am
960
Yes, they have the same look.
beam0
(beam0)
June 6, 2018, 7:20pm
961
BlueSwordM:
Yeah, I’m going to be buying it, then swap the emitter.
And yes, if you see 3-9V, it means it is using a buck driver.
2. The best LED for pure raw output would be a 5000k 70CRI LH351D,as that is the most efficient single 3V LED on the market.
With a buck driver and a 2S driver, you will be getting the best constant output of a single 3V LED, at the cost of runtime compared to a 90CRI 219C due to a higher forward voltage.
Thanks. I found them at digikey, is there anywhere else that sells these LED’s?
https://www.digikey.com/product-detail/en/samsung-semiconductor-inc/SPHWHTL3DA0CF4RTU6/1510-2159-1-ND/6569490
I had completely forgotten about AEDe!
He does sell 5000k 70CRI LH351Ds. Go check out his thread and send him a PM.
beam0
(beam0)
June 7, 2018, 4:25am
963
From what I can tell he doesn’t have them currently, but as I recall you have to buy 20pcs.
He does not have them yet, but you don’t have to buy 20 of them.
Just buy 10 of them. They are the same price as the 90CRI 4000k, with higher forward voltage, but much more efficient.
beam0
(beam0)
June 7, 2018, 5:00am
965
BlueSwordM:
He does not have them yet, but you don’t have to buy 20 of them.
Just buy 10 of them. They are the same price as the 90CRI 4000k, with higher forward voltage, but much more efficient.
OK thanks I’ll check with him.
beam0
(beam0)
June 7, 2018, 5:13am
966
BlueSwordM:
Yeah, I’m going to be buying it, then swap the emitter.
And yes, if you see 3-9V, it means it is using a buck driver.
2. The best LED for pure raw output would be a 5000k 70CRI LH351D,as that is the most efficient single 3V LED on the market.
With a buck driver and a 2S driver, you will be getting the best constant output of a single 3V LED, at the cost of runtime compared to a 90CRI 219C due to a higher forward voltage.
With 2S and a buck driver running 3A output to a single LH351D, what would you estimate the max output to be? (5000k 70CRI version)
You would be getting about 1260 lumens.
beam0
(beam0)
June 9, 2018, 1:57pm
968
Wow, thanks. That is great for a 3v LED light that’s not run by direct drive!
So the output of a buck driver would be considered a “fully regulated” ?
Yes, as long as you have a 2S a sufficiently high input voltage to maintain regulated output.
FPV
(FPV)
June 11, 2018, 10:37am
970
X31
(-X3-)
June 11, 2018, 11:29am
971
And I ordered 3 independent emitters for 3,19$ each few days ago…
Oh well :person_facepalming:
EDIT : Please KD, could you stock the High CRI version of the SST-20 ?
It’s called SST-20 WxH, here is the datasheet
Barkuti
(Barkuti)
June 11, 2018, 1:58pm
972
And I ordered 3 independent emitters for 3,19$ each few days ago…
Oh well :person_facepalming:
EDIT : Please KD, could you stock the High CRI version of the SST-20 ?
It's called SST-20 WxH, here is the datasheet
I second this. Pretty cool. Tightly binned 2700/3000/3500/4000Ks too (if available).
Cheers ^:)
Someone should send one or two to koef3 for testing.
Zelda
(Zelda)
June 11, 2018, 5:25pm
974
@ KD, please get the A120 footprint version which is XP-compatible. Like SST-20-W35H-A120 -J4352
gchart
(gchart)
June 11, 2018, 5:33pm
975
I have 10 coming in (from AE). If he’s up for testing them, I’ll likely send a couple to Texas_Ace since he’s here in the states. It’d probably be a bit more costly for me to send them internationally.
Barkuti
(Barkuti)
June 12, 2018, 1:41am
976
Mmm, a few hours ago I had to handle the FedEx shipping guy €29.23 in custom duties for a €33.24 order from the :facepalm: states. Grrr $uck$…
Cheers :-)
Original post date Tue, 06/12/2018 - 00:03; space removed LoL.