XB-D output

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With the XB-D and XT-E LEDs, Cree began binning their LEDs at 85° C instead of 25° C. For easier comparison, the Cree and Brightness Bins pages show the output at 25° C, but here are both. According to the XB-D datasheet, the output is 14% higher at 25° so the numbers for 85° are just multiplied by 1.14.


Brightness Bins for Cree XB-D at 25° C
Bin 350mA
100%
700mA
175%
1000mA
222%
Q2 100-107 174-187 220-236
Q3 107-114 187-196 236-253
Q4 114-122 196-213 253-269
Q5 122-130 213-227 269-287
R2 130-139 227-243 287-308
R3 139-148 243-259 308-327
R4 148-158 259-277 327-352
Brightness Bins for Cree XB-D at 85° C
Bin 350mA
100%
700mA
175%
1000mA
222%
Q2 87.4-93.9 153-164 193-207
Q3 93.9-100 164-172 207-222
Q4 100-107 172-187 222-236
Q5 107-114 187-199 236-252
R2 114-122 199-213 252-270
R3 122-130 213-227 270-287
R4 130-139 227-243 287-309