XT-E output: Difference between revisions
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(Created page with "The Cree XT-E LED is binned at a temperature of 85 degrees Celsius whereas earlier LED's were binned at 25 degrees Celsius. The XT-E datasheet indicates that the LED is 14...") |
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Revision as of 18:49, 9 May 2012
The Cree XT-E LED is binned at a temperature of 85 degrees Celsius whereas earlier LED's were binned at 25 degrees Celsius. The XT-E datasheet indicates that the LED is 14% brighter at 25 degrees, so here are two tables, the first table with lumen output at 85 degrees and the second with all of those numbers multiplied by 1.14.
| Bin | 350mA 100% |
700mA 178% |
1000mA 230% |
1500mA 302% |
|---|---|---|---|---|
| Q5 | 107-114 | 190-203 | 246-262 | 324-354 |
| R2 | 114-122 | 203-217 | 262-281 | 354-369 |
| R3 | 122-130 | 217-231 | 281-299 | 369-393 |
| R4 | 130-139 | 231-247 | 299-320 | 393-420 |
| R5* | 139-148 | 247-263 | 320-340 | 420-447 |
| S2 | 148-156 | 247-277 | 340-359 | 447-471 |
| 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 |