Samsung: Difference between revisions

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(LH351A seems to have replaced 3535, but has different data)
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Samsung is a Korean electronics company that also makes LED's. Their main LED for flashlights is the 3535 which is very similar to the [[Cree]] XP-G. The "3535" name refers to the size of the LED which is 3.5mm x 3.5mm, but the model name seems to have changed to LH351A, along with some of the binning codes. The information below pertains to what they called the 3535 originally, based on a June 2011 datasheet. The LH351A datasheet is [http://www.samsung.com/global/business/led/2012/file/Lighting/LED_Component/High_Power/Data_Sheet/LH351A_data_sheet.pdf here].
Samsung is a Korean electronics company that also makes LEDs. Their main LED for flashlights is the LH351 series which is very similar to the [[Cree]] XP series. Samsung uses [[ANSI White]] chromaticity quadrangles for its tint bins. The 2700K quadrangle is called W0 and is broken down into 4x4 grid of smaller quadrangles W1 to WG, numbered left to right and bottom to top. The 3000K quad is called V0 and is also broken down into 16 subquads called V1 to VG. The 5000K quad is called R0 and is broken into 4 subquads R1 to R4 with R5 and R6 below the subquad and R7 and R8 above it, outside the ANSI quadrant.  


Samsung uses [[ANSI White]] chromaticity quadrangles for its tint bins. The 2700K quadrangle is called W0 and is broken down into 4x4 grid of smaller quadrangles W1 to WG, numbered left to right and bottom to top. The 3000K quad is called V0 and is also broken down into 16 subquads called V1 to VG. The 5000K quad is called R0 and is broken into 4 subquads R1 to R4 with R5 and R6 below the subquad and R7 and R8 above it, outside the ANSI quadrant.
==LH351A==


The 2700K and 3000K LED's have a minimum [[Terminology#CRI|CRI]] of 80, while the 5000K LED has a minimum CRI of 70. Forward voltage bins are E3 for 2.7-3.0V and H3 for 3.0-3.3V. The maximum flux bins available are K1 for 2700K and 3000K and N1 for 5000K.
The previous "3535" 3.5mm x 3.5mm model became the LH351A, retaining some of the binning codes. The information below pertains to what they called the 3535 originally, based on a June 2011 datasheet. The LH351A datasheet is [http://www.samsung.com/global/business/led/2012/file/Lighting/LED_Component/High_Power/Data_Sheet/LH351A_data_sheet.pdf here].
 
The 2700K and 3000K LEDs have a minimum [[Terminology#CRI|CRI]] of 80, while the 5000K LED has a minimum CRI of 70. Forward voltage bins are E3 for 2.7-3.0V and H3 for 3.0-3.3V. The maximum flux bins available are K1 for 2700K and 3000K and N1 for 5000K.


[[File:Samsung3535.jpg|thumb|Samsung 3535 LED]]
[[File:Samsung3535.jpg|thumb|Samsung 3535 LED]]
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|-
|-
|M2        ||  140-150  ||  254-273  ||  341-366  ||  468-501
|M2        ||  140-150  ||  254-273  ||  341-366  ||  468-501
|}
==LH351B==
[https://cdn.samsung.com/led/file/resource/2018/04/Data_Sheet_LH351B_Rev.23c.pdf Datasheet]
The LH351B has the smallest emitter area of the three current models. This will give it the most throw in typical flashlight optics, but the least output and lowest maximum current. 90 CRI is listed in the datasheet for 5000K and below but only appears to be available for purchase in warmer tints as of August 2018. Flux bins listed are +/- 7%.
{|class="wikitable"  style="text-align: center; width: 400px;"
|+ Brightness Bins for Samsung LH351B
|-
!Bin  !!  350mA<BR>100%    !!  700mA<BR>182%  !!  1000mA<BR>244%  !!  1500mA<BR>334%
|-
|G3        ||  100  ||  181  ||  238  ||  322
|-
|H3        ||  110  ||  199  ||  262  ||  354
|-
|J3        ||  120  ||  217  ||  286  ||  386
|-
|K3        ||  130  ||  235  ||  310  ||  418
|-
|M3        ||  140  ||  252  ||  335  ||  457
|-
|N3        ||  150  ||  270  ||  359  ||  489
|-
|}
==LH351C==
[https://cdn.samsung.com/led/file/resource/2018/04/Data_Sheet_LH351B_Rev.23c.pdf Datasheet]
The LH351C has an emitter area between the B ad D models. Flux bins ending in F cover an unusually large +/- 17% range. Sub-bins ending in B cover a smaller range, but when the emitters are listed for sale, the larger bins are the only information available as of August 2018.
CRI of 70, 80, and 90 is listed for up to 5000K. Initial reports as of August 2018 indicate these have a noticeable amount of green off-tint in 5000K, 90 CRI.
{|class="wikitable"  style="text-align: center; width: 400px;"
|+ Brightness Bins for Samsung LH351C
|-
!Bin  !!  350mA<BR>50%    !!  700mA<BR>100%  !!  1000mA<BR>143%  !!  1500mA<BR>214% !! 2000mA<BR>286%
|-
|FF        ||  81  ||  150  ||  213  ||  284  || 354
|-
|GF        ||  92  ||  170  ||  241  ||  322  || 401
|-
|HF        ||  103  ||  190  ||  269  ||  360  || 448
|-
|JF        ||  114  ||  210  ||  298  ||  398  || 495
|-
|KF        ||  124  ||  230  ||  326  ||  436  || 542
|-
|MF        ||  135  ||  250  ||  354  ||  474  || 590
|-
|NF        ||  146  ||  270  ||  383  ||  512  || 637
|-
|PF        ||  157  ||  290  ||  411  ||  550  || 684
|-
|QF        ||  168  ||  310  ||  439  ||  587  || 731
|-
|RF        ||  178  ||  330  ||  468  ||  625  || 778
|-
|SF        ||  189  ||  350  ||  496  ||  663  || 825
|-
|TF        ||  200  ||  370  ||  524  ||  701  || 872
|-
|UF        ||  211  ||  390  ||  553  ||  739  || 920
|-
|VF        ||  222  ||  410  ||  581  ||  777  || 967
|-
|WF        ||  232  ||  430  ||  609  ||  815  || 1014
|-
|}
==LH351D==
The LH351D has the largest emitter area of the Samsung 3535 LEDs. It's comparable to the Cree XP-L in output and beam pattern, and exceeds the XP-L's output when overdriven. Flux bins are, again available in loose and tight, with loose bins ending in 6 and tight bins ending in 2. Emitters actually listed for sale all appear to have loose bins as of August 2018.
CRI up to 90 is available in color temperatures as high as 6000K. Tint is often compared to the Nichia 219C, but less green and very even across the beam.
{|class="wikitable"  style="text-align: center; width: 400px;"
|+ Brightness Bins for Samsung LH351D
|-
!Bin  !!  350mA<BR>33%    !!  700mA<BR>67%  !!  1050mA<BR>100%  !!  1500mA<BR>143% !! 2000mA<BR>190% !! 3000mA<BR>286%
|-
|K6        ||  96  ||  182  ||  260  ||  351  || 440  ||  584
|-
|M6        ||  103  ||  196  ||  280  ||  378  || 474  ||  629
|-
|N6        ||  111  ||  210  ||  300  ||  405  ||  508  ||  674
|-
|P6        ||  118  ||  224  ||  320  ||  432  ||  542  ||  719
|-
|Q6        ||  126  ||  238  ||  340  ||  460  ||  576  ||  764
|-
|R6        ||  133  ||  252  ||  360  ||  487  ||  610  ||  809
|-
|S6        ||  140  ||  266  ||  380  ||  513  ||  644  ||  854
|-
|T6        ||  148  ||  280  ||  400  ||  540  ||  678  ||  899
|-
|U6        ||  155  ||  294  ||  420  ||  567  ||  711  ||  944
|-
|V6        ||  162  ||  308  ||  440  ||  594  ||  745  ||  989
|-
|X6        ||  170  ||  322  ||  460  ||  621  ||  779  ||  1034
|-
|Y6        ||  177  ||  336  ||  480  ||  648  ||  813  ||  1079
|-
|Z6        ||  184  ||  350  ||  500  ||  675  ||  847  ||  1124
|-
|16        ||  192  ||  364  ||  520  ||  702  ||  881  ||  1169
|-
|26        ||  199  ||  378  ||  540  ||  729  ||  915  ||  1214
|-
|36        ||  206  ||  392  ||  560  ||  756  ||  948  ||  1258
|-
|46        ||  214  ||  406  ||  580  ||  783  ||  982  ||  1303
|-
|56        ||  221  ||  420  ||  600  ||  810  ||  1016  ||  1348
|-
|66        ||  229  ||  434  ||  620  ||  837  ||  1050  ||  1393
|-
|76        ||  236  ||  448  ||  640  ||  864  ||  1084  ||  1438
|-
|86        ||  243  ||  462  ||  660  ||  892  ||  1118  ||  1483
|-
|96        ||  251  ||  476  ||  680  ||  919  ||  1152  ||  1528
|}
|}

Latest revision as of 13:28, 26 August 2018

Samsung is a Korean electronics company that also makes LEDs. Their main LED for flashlights is the LH351 series which is very similar to the Cree XP series. Samsung uses ANSI White chromaticity quadrangles for its tint bins. The 2700K quadrangle is called W0 and is broken down into 4x4 grid of smaller quadrangles W1 to WG, numbered left to right and bottom to top. The 3000K quad is called V0 and is also broken down into 16 subquads called V1 to VG. The 5000K quad is called R0 and is broken into 4 subquads R1 to R4 with R5 and R6 below the subquad and R7 and R8 above it, outside the ANSI quadrant.

LH351A

The previous "3535" 3.5mm x 3.5mm model became the LH351A, retaining some of the binning codes. The information below pertains to what they called the 3535 originally, based on a June 2011 datasheet. The LH351A datasheet is here.

The 2700K and 3000K LEDs have a minimum CRI of 80, while the 5000K LED has a minimum CRI of 70. Forward voltage bins are E3 for 2.7-3.0V and H3 for 3.0-3.3V. The maximum flux bins available are K1 for 2700K and 3000K and N1 for 5000K.

Samsung 3535 LED
Brightness Bins for Samsung 3535
Bin 350mA
100%		 700mA
183%		 1000mA
246%		 1500mA
320%
F1 90-100 165-183 221-246 288-320
G1 100-110 183-201 246-271 320-352
H1 110-120 201-220 271-295 352-384
J1 120-130 220-238 295-320 384-416
K1 130-140 238-256 320-344 416-448
M1 140-150 256-274 344-369 448-480
N1* 150-160 274-293 369-394 480-512

Here is some output data based on the LH351A datasheet dated January 2013:

Brightness Bins for Samsung LH351A
Bin 350mA
100%		 700mA
182%		 1000mA
244%		 1500mA
334%
F5 90-100 164-182 219-244 301-334
G4 100-110 182-200 244-268 334-368
H3,H4,H5 110-120 200-218 268-293 368-401
J2,J4 120-130 218-237 293-317 401-434
K3 130-140 237-254 317-341 434-468
M2 140-150 254-273 341-366 468-501

LH351B

Datasheet

The LH351B has the smallest emitter area of the three current models. This will give it the most throw in typical flashlight optics, but the least output and lowest maximum current. 90 CRI is listed in the datasheet for 5000K and below but only appears to be available for purchase in warmer tints as of August 2018. Flux bins listed are +/- 7%.

Brightness Bins for Samsung LH351B
Bin 350mA
100%		 700mA
182%		 1000mA
244%		 1500mA
334%
G3 100 181 238 322
H3 110 199 262 354
J3 120 217 286 386
K3 130 235 310 418
M3 140 252 335 457
N3 150 270 359 489


LH351C

Datasheet

The LH351C has an emitter area between the B ad D models. Flux bins ending in F cover an unusually large +/- 17% range. Sub-bins ending in B cover a smaller range, but when the emitters are listed for sale, the larger bins are the only information available as of August 2018.

CRI of 70, 80, and 90 is listed for up to 5000K. Initial reports as of August 2018 indicate these have a noticeable amount of green off-tint in 5000K, 90 CRI.

Brightness Bins for Samsung LH351C
Bin 350mA
50%		 700mA
100%		 1000mA
143%		 1500mA
214%		 2000mA
286%
FF 81 150 213 284 354
GF 92 170 241 322 401
HF 103 190 269 360 448
JF 114 210 298 398 495
KF 124 230 326 436 542
MF 135 250 354 474 590
NF 146 270 383 512 637
PF 157 290 411 550 684
QF 168 310 439 587 731
RF 178 330 468 625 778
SF 189 350 496 663 825
TF 200 370 524 701 872
UF 211 390 553 739 920
VF 222 410 581 777 967
WF 232 430 609 815 1014

LH351D

The LH351D has the largest emitter area of the Samsung 3535 LEDs. It's comparable to the Cree XP-L in output and beam pattern, and exceeds the XP-L's output when overdriven. Flux bins are, again available in loose and tight, with loose bins ending in 6 and tight bins ending in 2. Emitters actually listed for sale all appear to have loose bins as of August 2018.

CRI up to 90 is available in color temperatures as high as 6000K. Tint is often compared to the Nichia 219C, but less green and very even across the beam.


Brightness Bins for Samsung LH351D
Bin 350mA
33%		 700mA
67%		 1050mA
100%		 1500mA
143%		 2000mA
190%		 3000mA
286%
K6 96 182 260 351 440 584
M6 103 196 280 378 474 629
N6 111 210 300 405 508 674
P6 118 224 320 432 542 719
Q6 126 238 340 460 576 764
R6 133 252 360 487 610 809
S6 140 266 380 513 644 854
T6 148 280 400 540 678 899
U6 155 294 420 567 711 944
V6 162 308 440 594 745 989
X6 170 322 460 621 779 1034
Y6 177 336 480 648 813 1079
Z6 184 350 500 675 847 1124
16 192 364 520 702 881 1169
26 199 378 540 729 915 1214
36 206 392 560 756 948 1258
46 214 406 580 783 982 1303
56 221 420 600 810 1016 1348
66 229 434 620 837 1050 1393
76 236 448 640 864 1084 1438
86 243 462 660 892 1118 1483
96 251 476 680 919 1152 1528
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