LH351D 2700K 90CRI

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contactcr
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LH351D 2700K 90CRI

Sorry for the poor formatting. Tested a LED from DigiKey I haven’t seen anyone purchase yet. Used a 20mm Carclo frosted optic.

100mAh

Spectrum from 380.000000 to 730.000000 nm in 106 steps 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.001, 0.003, 0.024, 0.057, 0.099, 0.172, 0.299, 0.491, 0.776, 1.190, 1.746, 2.449, 3.382, 4.567, 5.643, 5.908, 5.113, 3.978, 3.277, 3.033, 2.878, 2.663, 2.554, 2.695, 3.075, 3.580, 4.146, 4.755, 5.414, 6.057, 6.638, 7.128, 7.525, 7.812, 7.994, 8.150, 8.347, 8.606, 8.905, 9.201, 9.508, 9.824, 10.175, 10.562, 11.004, 11.450, 11.867, 12.153, 12.316, 12.441, 12.672, 13.036, 13.429, 13.803, 14.111, 14.423, 14.694, 14.966, 15.299, 15.814, 16.508, 17.251, 17.984, 18.667, 19.334, 19.886, 20.300, 20.617, 20.860, 21.030, 21.067, 21.010, 20.841, 20.543, 20.068, 19.426, 18.659, 17.784, 16.865, 15.952, 15.044, 14.160, 13.275, 12.413, 11.561, 10.743, 9.933, 9.139, 8.405, 7.725, 7.089, 6.488, 5.953, 5.471, 5.033, 4.616, 4.221, 3.852, 3.489, 3.136

Result is XYZ: 1010.394189 902.329383 248.344124, Yxy: 902.329383 0.467544 0.417539
Ambient = 902.3 Lux, CCT = 2649K (Duv 0.0019)
Color Rendering Index (Ra) = 95.9 [ R9 = 77.0 ]
R1 = 96.5 R2 = 96.9 R3 = 96.0 R4 = 97.8 R5 = 96.3 R6 = 97.2 R7 = 96.5
R8 = 90.4 R9 = 77.0 R10 = 92.2 R11 = 98.9 R12 = 89.5 R13 = 96.4 R14 = 96.9

500mAh

Spectrum from 380.000000 to 730.000000 nm in 106 steps 0.066, 0.066, 0.066, 0.066, 0.066, 0.066, 0.066, 0.098, 0.154, 0.287, 0.531, 0.907, 1.503, 2.378, 3.653, 5.412, 7.664, 10.384, 13.752, 17.741, 21.105, 21.693, 18.943, 15.131, 12.604, 11.518, 10.850, 10.103, 9.736, 10.177, 11.437, 13.171, 15.163, 17.318, 19.629, 21.889, 23.949, 25.726, 27.192, 28.285, 28.997, 29.618, 30.400, 31.412, 32.545, 33.647, 34.777, 35.909, 37.163, 38.557, 40.131, 41.744, 43.271, 44.344, 44.980, 45.516, 46.438, 47.870, 49.421, 50.889, 52.101, 53.325, 54.378, 55.413, 56.635, 58.487, 60.962, 63.586, 66.175, 68.560, 70.865, 72.747, 74.115, 75.131, 75.876, 76.362, 76.377, 76.062, 75.361, 74.203, 72.426, 70.040, 67.195, 64.009, 60.696, 57.408, 54.166, 51.020, 47.876, 44.784, 41.743, 38.819, 35.922, 33.094, 30.472, 28.023, 25.732, 23.563, 21.641, 19.915, 18.341, 16.839, 15.407, 14.075, 12.763, 11.482

Result is XYZ: 3707.844584 3304.521708 948.220008, Yxy: 3304.521708 0.465775 0.415110
Ambient = 3304.5 Lux, CCT = 2654K (Duv 0.0012)
Color Rendering Index (Ra) = 95.4 [ R9 = 74.5 ]
R1 = 95.9 R2 = 96.8 R3 = 96.3 R4 = 96.9 R5 = 95.8 R6 = 97.0 R7 = 95.5
R8 = 89.0 R9 = 74.5 R10 = 92.0 R11 = 98.2 R12 = 89.9 R13 = 96.0 R14 = 97.2

750mAh

Spectrum from 380.000000 to 730.000000 nm in 106 steps 0.096, 0.096, 0.096, 0.096, 0.096, 0.096, 0.096, 0.183, 0.340, 0.624, 1.107, 1.909, 3.176, 4.966, 7.498, 10.964, 15.376, 20.579, 26.840, 34.083, 40.061, 41.033, 36.051, 29.151, 24.446, 22.273, 20.912, 19.518, 18.846, 19.615, 21.893, 25.106, 28.856, 32.911, 37.246, 41.498, 45.407, 48.818, 51.654, 53.807, 55.258, 56.531, 58.102, 60.106, 62.353, 64.526, 66.716, 68.906, 71.337, 74.041, 77.101, 80.237, 83.225, 85.364, 86.680, 87.830, 89.741, 92.626, 95.761, 98.730, 101.193, 103.687, 105.848, 107.956, 110.382, 114.018, 118.849, 123.955, 128.960, 133.544, 137.959, 141.530, 144.111, 146.013, 147.390, 148.278, 148.254, 147.601, 146.209, 143.938, 140.463, 135.822, 130.322, 124.168, 117.758, 111.420, 105.180, 99.143, 93.085, 87.107, 81.220, 75.572, 69.983, 64.504, 59.417, 54.684, 50.267, 46.065, 42.332, 38.981, 35.924, 33.015, 30.226, 27.636, 25.072, 22.562

Result is XYZ: 7197.824480 6387.703729 1826.003535, Yxy: 6387.703729 0.467041 0.414476
Ambient = 6387.7 Lux, CCT = 2632K (Duv 0.0009)
Color Rendering Index (Ra) = 95.2 [ R9 = 73.2 ]
R1 = 95.6 R2 = 96.8 R3 = 96.5 R4 = 96.5 R5 = 95.6 R6 = 97.0 R7 = 95.1
R8 = 88.2 R9 = 73.2 R10 = 91.9 R11 = 97.9 R12 = 90.2 R13 = 95.8 R14 = 97.3

1000mAh

Spectrum from 380.000000 to 730.000000 nm in 106 steps 0.165, 0.165, 0.165, 0.165, 0.165, 0.165, 0.165, 0.264, 0.486, 0.894, 1.563, 2.650, 4.295, 6.550, 9.646, 13.815, 19.040, 25.087, 32.270, 40.590, 47.737, 49.585, 44.770, 37.260, 31.591, 28.643, 26.791, 25.002, 24.027, 24.648, 27.037, 30.606, 34.848, 39.454, 44.385, 49.264, 53.801, 57.825, 61.239, 63.882, 65.710, 67.345, 69.324, 71.812, 74.551, 77.178, 79.835, 82.457, 85.345, 88.576, 92.243, 96.016, 99.640, 102.274, 103.987, 105.525, 108.012, 111.717, 115.722, 119.516, 122.705, 125.908, 128.672, 131.344, 134.366, 138.798, 144.640, 150.764, 156.716, 162.127, 167.310, 171.468, 174.402, 176.501, 177.973, 178.872, 178.693, 177.748, 175.943, 173.127, 168.878, 163.237, 156.595, 149.164, 141.441, 133.859, 126.411, 119.193, 111.969, 104.833, 97.803, 91.061, 84.372, 77.834, 71.767, 66.115, 60.821, 55.783, 51.317, 47.311, 43.650, 40.151, 36.801, 33.678, 30.595, 27.572

Result is XYZ: 8711.560363 7699.208821 2246.763775, Yxy: 7699.208821 0.466919 0.412660
Ambient = 7699.2 Lux, CCT = 2620K (Duv 0.0002)
Color Rendering Index (Ra) = 95.0 [ R9 = 71.7 ]
R1 = 95.5 R2 = 97.0 R3 = 97.1 R4 = 96.0 R5 = 95.5 R6 = 97.2 R7 = 94.4
R8 = 87.3 R9 = 71.7 R10 = 92.4 R11 = 97.4 R12 = 90.9 R13 = 95.8 R14 = 97.6

2000mAh

Spectrum from 380.000000 to 730.000000 nm in 106 steps 0.390, 0.390, 0.390, 0.390, 0.390, 0.390, 0.390, 0.689, 1.154, 1.863, 2.963, 4.592, 6.827, 9.673, 13.401, 18.255, 24.185, 30.845, 38.672, 47.992, 56.903, 61.609, 60.127, 54.920, 49.449, 45.138, 41.677, 38.638, 36.653, 36.241, 37.705, 40.657, 44.654, 49.207, 54.211, 59.235, 64.107, 68.669, 72.738, 76.062, 78.529, 80.829, 83.561, 86.868, 90.441, 93.799, 97.111, 100.360, 103.917, 107.904, 112.482, 117.272, 121.984, 125.604, 128.211, 130.704, 134.458, 139.776, 145.511, 150.962, 155.564, 160.053, 163.814, 167.267, 170.975, 176.298, 183.193, 190.297, 197.064, 203.053, 208.690, 212.988, 215.730, 217.440, 218.414, 218.753, 217.840, 216.079, 213.351, 209.485, 204.010, 196.956, 188.764, 179.716, 170.389, 161.261, 152.357, 143.789, 135.222, 126.773, 118.467, 110.503, 102.601, 94.860, 87.676, 80.987, 74.718, 68.739, 63.431, 58.669, 54.318, 50.145, 46.119, 42.361, 38.618, 34.934

Result is XYZ: 10416.386721 9137.475806 2817.420456, Yxy: 9137.475806 0.465614 0.408447
Ambient = 9137.5 Lux, CCT = 2605K (Duv -0.0012)
Color Rendering Index (Ra) = 93.9 [ R9 = 65.9 ]
R1 = 94.2 R2 = 97.2 R3 = 98.5 R4 = 93.9 R5 = 94.4 R6 = 97.1 R7 = 92.2
R8 = 83.8 R9 = 65.9 R10 = 92.9 R11 = 95.0 R12 = 91.1 R13 = 94.9 R14 = 98.6
raccoon city
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Could use some more numbers.  ;)

contactcr
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They should be really good for tint mixing and stuff like the BLF Lantern if they end up being able to source the 2700K

AEDe
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Units of current is A or mA . Ah or mAh means charge. (Current 1A go during 1 hour . Please fix.

SKV89
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Thanks for the VERY detailed report! Seems like the 2700K is not all that green. Decent warm white HI CRI on its own but perfect for CCT mixing as pointed out above. 5000K + 2700K will result in a very nice 4000K tint

mattlward
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Agreed, they should not be badly green. I am not a fan of lights warmer than 3000k, but I bet this would mix well with a couple of SST20’s at 4000k.

EDC rotation:
FW1A, LH351D 4000k (second favorite)
FW3A, LH351D 3500k
FW3A, SST20 FD2 4000k
FW3A, Nichia 4000k sw40 r9080 (favorite light!)
FW3A, Cree XP-L Hi 5A3
Emisar D4V2, SST20 4000k
S2+, XM-L2 T6 4C

1stein
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Time to arrange some group buy for LH351D?
Shipping from US to EU takes over $20 at Mouser. Insane! (do they carry it by themselves?)

Wurkkos
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we are going to use it in a variable temperature flashlight Glasses

id30209
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Looks like 351D is taking a big chunk of LED market over SST20 and looks like 219’s…
Or is it just me?

WTB Titanium 4sevens 2xAA tube

KevinZA1988
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What raw lumens can one expect at 2A or 3A with the LH351D 2700K?

Armytek Prime C1 Pro, Armytek Prime C2 Pro, Armytek Tiara C1 Pro, Astrolux MF01 Mini, BLF Q8, BLF A6, BLF FW1A, BLF FW3A, BLF FW3C, BLF LT1, Convoy L6, Convoy C8+ , Convoy S3, Convoy M21A, Convoy S11, Emisar D4, Fireflies E07, Jaxman E2L, Lumintop EDC18, Manta Ray C8.2 long version, Olight S1R Baton II special edition series, S2R Baton II, Nitecore HC65, Olight H1R Nova.

https://photos.app.goo.gl/JaJaDv4V838AEJf39

Quadrupel
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jon_slider
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shaved LH351d 2700k in a Nitecore EX11.2
0.2 to 275 lumens w a fresh 16340
0.02 to 120 lumens with a used CR123 @ 2.88v

Nicolicous
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nice pinky Smile

anywhere to buy rather DigiKey ?

their shipping cost is outrageous

Nico -.-

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Sofirn sells the LH351D as used in the LT1, 2700K and 5000K. They are on their own website under accessories or parts or something like that. Less than $2 each IIRC. $20 gets free shipping

Barry0892
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Link to buy LH351D bare emitter, choose 2700K 90CRI or 5000K 90CRI

$1.59 per led, please buy them with other products.

https://sofirnlight.com/lh351d-emitter-p0054.html

WhatsApp: +8615773183209 

My new Facebook account: https://www.facebook.com/barry.dong.9250

Nicolicous
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Thanks

will get with bunch other stuff from sofirn soon.

Nico -.-

Agro
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Barry0892 wrote:
Link to buy LH351D bare emitter, choose 2700K 90CRI or 5000K 90CRI

$1.59 per led, please buy them with other products.

https://sofirnlight.com/lh351d-emitter-p0054.html


What if I wanted to buy them separately?
Unheard
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Barry0892 wrote:
$1.59 per led, please buy them with other products.

Oops. Sorry.

Smile, you cannot kill them all.

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Unheard wrote:

what is that LED?

just ordered a few 2700k LH351d plus a Low/High C01s

Unheard
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That’s the bespoken LH351D 2700K, ordered from Sofirn (WB: “Daylight”)

Smile, you cannot kill them all.

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Unheard wrote:
LH351D 2700K

thanks
I will try one unshaved to see how it compares
I really like the shaved one I got from contactcr… no hint of green

the one you posted, modified for warmer WB and higher saturation, compared to the one I posted..
left not shaved, right shaved

I see slight green in the unshaved..
do you notice it?

and slightly less warm
(I realize the photos are inconclusive, until I can shoot both shaved and unshaved side by side in the same image, at the same output)…

or if someone could point me to the spectrum tests for the 2700k LH351d shaved compared to unshaved…

Unheard
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jon_slider wrote:
I see slight green in the unshaved..
do you notice it?

Absolutely. My camera cannot catch it, but there’s a significant difference between SST-20 and LH351D in this regard. The Samsung appears somehow green-orange. But the Nichia that was originally in the Drop tool was far worse in terms of green.

Smile, you cannot kill them all.

Sari33
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Unheard wrote:
jon_slider wrote:
I see slight green in the unshaved..
do you notice it?

Absolutely. My camera cannot catch it, but there’s a significant difference between SST-20 and LH351D in this regard. The Samsung appears somehow green-orange. But the Nichia that was originally in the Drop tool was far worse in terms of green.

How is SST20 2700k unknow Bin fron Sofirn compared to others samples from Hank or KD at low current?