Old Cree LEDs

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Here is some information about older Cree LEDs.

MC-E

A 4-die LED available with four of the same color dies or the MC-E Color with four different color dies (white, red, green, blue). The maximum current is 700mA with a Vf of 3.4V, though this varies from one color to another. Bins run from G (240 lumens) to M (430 lumens) at 350 mA. The white quadrant of the MC-E Color is available in cool white (A5) or neutral white (A4).

Cree MC-E datasheet

The MC-E was widely used in high-power flashlights like the EagleTac M2SC4, Fenix TK40, iTP A6 Polestar, and JETBeam M1X with advertised output of up to 700 lumens. The color version is in the Quark RGB (with neutral white or cool white available) but although the LED allows mixing of colors, the Quark RGB is switched to one color at a time.

Cree MC-E multi-die LED
Brightness Bins for Cree MC-E
(max is N bin)
Bin 1400mA
(350mA/die)
100%
2800mA
(700mA/die)
175%
H 280-320 490-560
J 320-370 560-648
K 370-430 648-753
M 430-490 753-858
N* 490-550 858-962
P 550-620 962-1085


XB-D

Cree XB-D is similar to the XT-E but smaller.
Very compact LED (the die is mounted on a chip 2.45 mm square opposed to 3.45 mm square for XP series) introduced in February 2012, promising lower cost. Should provide similar brightness to XP-E LEDs. First available units were warm white with Q2 brightness bin (at 350mA). This LED is used in some budget Ozark Trail 3xAAA lights at Walmart. The XB-D is binned at an operating temperature of 85° C instead of 25°, so in order to directly compare its output to other LEDs that are typically binned at 25 degrees, the output numbers in the table below have been increased by 14% from what is shown in the datasheet (see XB-D output for the 85° numbers). Can be driven up to 1000mA. Datasheet, press release.
Brightness Bins for Cree XB-D at 25° C
Bin 350mA
100%
700mA
172%
1000mA
222%
Q2 100-107 172-184 222-238
Q3 107-114 184-196 238-253
Q4 114-122 196-210 253-271
Q5 122-130 210-224 271-289
R2 130-139 224-239 289-309
R3 139-148 239-255 309-329
R4* 148-158 255-272 329-351


XM-L

Cree XM-L LED with 6 yellow strips and 3 bonding wires
Widely used in high power flashlights, this larger die LED was first available in November 2011, offering efficacy of 160 lumens per watt at 350mA. Output is as high as 340 lumens at 700mA (bin U3, which is still rare) therefore it is more efficient and puts out more light at any current than earlier single-die Cree LEDs. However the biggest improvement to overall output is the XM-L can be driven to 3000mA for 1100 lumens of output. Because the XM-L is binned at 700mA, the bin numbers do not correlate exactly to those of the smaller die LEDs which are binned at 350mA. The LED die is 2mm x 2mm on a 5mm x 5mm substrate with 6 yellow strips and 3 bonding wires as opposed to the XP-G with 4 strips and 2 bonding wires and the XP-E with 3 strips and 2 bonding wires. The first production lights to feature the XM-L were versions of the ThruNite Catapult V2 (first to ship), EagleTac M3C4, a 4Sevens Quark MiNi, and the JETBeam M1xm, introduced in December 2010, but budget retailer KaiDomain had LEDs and P60 drop-ins as well as P60 lights around the same time. Neutral and warm tints began shipping in March 2011. Press release Cree XM-L datasheet
Brightness Bins for Cree XM-L
(max is U3 bin)
Bin 700mA
100%
1000mA
137.5%
1500mA
195%
3000mA
325%
T2 200-220 275-303 390-429 650-715
T3 220-240 303-330 429-468 715-780
T4 240-260 330-358 468-507 780-845
T5 260-280 358-385 507-546 845-910
T6 280-300 385-413 546-585 910-975
U2 300-320 413-440 585-624 975-1040
U3* 320-340 440-468 624-663 1040-1105


XP-C

Cree XP-C LED has a smaller die than the XP-E
A lower current version of the XP-E with a smaller die. Maximum current 500mA and Vf of 3.5V. Bins up to Q4 (100 lumens) in cool white, Q2 in neutral white (84.7 lumens) and P3 in warm white (73.9 lumens). Looks like the XP-E, but the die has 2 yellow strips and 1 bonding wire instead of 3 strips and 2 bonding wires. The XP-C is used in the Streamlight Microstream and some Mini Maglites.

Cree XP-C datasheet

XP-E

Introduced in Fall of 2008, the XP-E shrunk the XR-E by 80% (though it uses the same die), now 3.45 mm square. It is available, in white (cool, neutral, and warm), blue, green, amber, red, and red-orange. For cool white, bins are Q3, Q4, Q5, R2 and R3 with output from 93.9 to 122 lumens. Neutral white bins are from P4 to Q4 (100 lumens min) and warm white bins range from P2 to Q2 (87.4 lumens min).

Cree XP-E datasheet

This LED is used in the NiteCore Defender Infinity, early Quarks (R2, neutral whites used a Q3), the iTP A series EOS and S series lights, EagleTac P100 and T100 series.

The XP-E has 3 strips on the die as opposed to 2 on the XP-C and 4 on the XP-G.

Cree XP-E LED
Brightness Bins for Cree XR-E, XP-E
(max bin for XP-E is R4, XR-E is R2)
Bin 350mA
100%
700mA
170%
1000mA
220%
P4 80.6-87.4 137-149 177-192
Q2 87.4-93.9 149-160 192-207
Q3 93.9-100 160-170 207-220
Q4 100-107 170-182 220-233
Q5 107-114 182-194 233-251
R2 114-122 194-207 251-268
R3 122-130 207-221 268-286
R4* 130-139 221-236 286-306


XP-G

Same size package as the XP-E, but with a larger die. Therefore the resulting beam has a little more flood. It is available in varying output bins from R2 to S3 (S2 and S3 are rare and not always the best tints). Maximum current is 1500mA and Vf of 3.3V with efficacy of 141 lumens per watt. Cree XP-G datasheet, press release.

The XP-G R5 began widespread use in 2010 after being adopted early by 4Sevens and EagleTac. The limited edition titanium Quarks were among the first to use the XP-G, with an R4 bin. S2 bins became available in November 2010 but only in Quark and iTP special edition lights. Special edition matte-finish titanium Quark Mini and Turbo models were the first to feature S3 bins, shipping in December 2010.

Cree XP-G R5 LED
Brightness Bins for Cree XP-G
(max is S3 bin)
Bin 350mA
100%
700mA
187%
1000mA
250%
1500mA
333%
R2 114-122 213-228 285-305 380-406
R3 122-130 228-243 305-325 406-433
R4 130-139 243-260 325-348 433-463
R5 139-148 260-277 348-370 463-493
S2 148-156 277-292 370-390 493-520
S3* 156-164 292-307 390-410 520-547
S4 164-172 307-322 410-430 547-573


XR-C

Same size as XR-E (7mm x 9mm) but is designed for less current (500mA max). The die itself is smaller than the XR-E (same as the one in the XP-C). The maximum bin is Q2 with 87.4 lumens for cool white. It is available in white (cool, neutral, and warm) as well as royal blue, blue, green, amber, red-orange, and red. Vf is 3.5 volts at 350mA. Identifiable by the metal ring around the dome and a LED die with only two yellow strips and one bonding wire.

Cree XR-C datasheet

The XR-C is used in retail lights made by Coleman, River Rock, and Energizer.

XR-E

Cree XR-E LED easily identified by the metal ring around the LED
Introduced in the Fall of 2006 the XR-E was widely used in a number of different flashlights, with cool white, neutral white, and warm white colors available in addition to blue, royal blue, and green. Common bin numbers are P4, Q2, Q3, Q4, Q5, and R2 with increasing output from 80 lumens to 122 lumens at 350 mA and a Vf of 3.3V, but with much greater output available with higher currents. The size is 7 mm x 9 mm and you will often see this referred to as a 7090 XR-E. The die itself was available as the EZ1000 at first and then the smaller EZ900. Because the EZ900 can have the same overall output as the larger EZ1000 but in a smaller form, it should provide 23% greater intensity and throw (the EZ1000 is 1 mm square and the EZ900 is 0.9 mm square).

Cree XR-E datasheet

This LED was very widely used, featured in flashlights by Fenix, JETBeam, NiteCore D10, and EagleTac P20 and T20 series, and is still available in some budget lights. The neutral white version was used in Nitecore EZ series. It is easily recognized by the metal ring around the die with 3 yellow strips and 2 bonding wires.

XT-E

Cree XT-E LED
Introduced in February 2012, the XT-E has the same size chip as the XP series but seems to have a wider viewing angle for more flood and less throw. Can be driven up to 1.5A and available in bins up to R5 (at 350mA). This LED is binned at an operating temperature of 85° C instead of 25°, so in order to directly compare its output to other LEDs that are typically binned at 25 degrees, the numbers in the table below have been increased by 14% (see XT-E output for the 85° numbers). Cree introduced the XT-E as a low-cost, high efficiency LED capable of 148 lumens per watt at 350mA, offering higher lumens per dollar. The LED is not a flat square, but has an X shaped hill on the surface. The beam is like a small XM-L with a large hotspot and some varying tint across the beam. EagleTac announced that the XT-E would be an option in its D25 clicky series in April 2012, but XT-E lights were never actually released, supposedly due to beam quality issues. At about the same time, KaiDomain offered P60 drop-ins and flashlights with the XT-E. Cree uses the XT-E LED in its line of household light bulbs, introduced in 2013. Datasheet, press release.
Brightness Bins for Cree XT-E at 25° C
(max is R5 bin)
Bin 350mA
100%
700mA
178%
1000mA
230%
1500mA
302%
Q5 122-130 217-231 280-299 369-404
R2 130-139 231-247 299-320 404-421
R3 139-148 247-263 320-341 421-448
R4 148-158 263-282 341-365 448-479
R5* 158-169 282-300 365-388 479-510
S2 169-178 282-316 388-409 510-537