XT-E output

From Flashlight Wiki
Revision as of 19:01, 25 January 2014 by Brted (talk | contribs) (replace LED's with LEDs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

The Cree XT-E LED is binned at a temperature of 85 degrees Celsius whereas earlier LEDs 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.

Brightness Bins for Cree XT-E
(max is R5 bin) at 85° C
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
Brightness Bins for Cree XT-E
(max is R5 bin) at 25° C
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