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cld-ds88 rev 0 product family data sheet copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. www .cree.com/xlamp cree, inc. 4600 silicon drive durham, nc 27703 usa tel: +1.919.407.5300 cree ? xlamp ? cxa1850 led product description the xlamp cxa1850 expands crees family of high density (hd) le d arrays, featuring a 12-mm optical source and enabling lighting manufacturers to create a new generation of products that delivers the same intensity and light quality as 70 - w ceramic metal halide (cm h) at up to 50 percent lower power. the new hd class of cxa arrays provide unrivaled lumen density that can reduce system cost for the next generation of l ed spotlights. the cxa l e d design guide provides basic information on the requirements to use the cxa1850 le d successfully in luminaire designs. 1 1 cree xlamp cxa l e d design guide, design guide dg02, www.cree.com/ xlamp_app_notes/cxa_design_guide features ? available in 4-step and 2-step easywhite ? bins at 2700 k, 3000 k, 3500 k, 4000 k and 5000 k, 5700 k and 6500 k cct ? available in ansi white bins at 4000 k, 5000 k, 5700 k and 6500 k cct ? available in 70-, 80- and 93-minimum cri options ? forward voltage: 35 v ? 85 c binning and characterization ? m aximum drive current: 2100 ma ? 115 viewing angle, uniform chromaticity profile ? top-side solder connections ? thermocouple attach point ? nema ssl-3 2011 standard fux bins table of contents characteristics .............................. 2 o perating limits ............................ 2 flux characteristics, easywhite order codes and bins .................... 3 flux characteristics, ansi white order codes and bins .................... 5 relative spectral p ower distribution . 6 e lectrical characteristics ................. 6 relative luminous flux ................... 7 typical spatial distribution .............. 8 p erformance groups - brightness ..... 8 p erformance groups - chromaticity .. 9 cree easywhite bins plotted on the cie 1931 color space ................... 11 cree ansi white bins plotted on the cie 1931 color space .............. 11 bin and o rder code formats .......... 12 mechanical dimensions .................. 12 thermal design ............................ 13 notes .......................................... 14 p ackaging .................................... 15
2 characteristics characteristics unit minimum typical maximum viewing angle (fwhm) degrees 115 e sd withstand voltage (hbm per m il-std-883d) v 8000 dc forward current ma 2100* reverse current ma 0.1 forward voltage (@ 1400 ma, t j = 85 c) v 35 forward voltage (@ 1400 ma, t j = 25 c) v 42 * refer to the o perating limits section. operating limits the maximum current rating of the cxa1850 is dependent on the case temperature (tc) when the l e d has reached thermal equilibrium under steady-state operation. p lease refer to the m echanical dimensions section on page 12 for the location of the tc measurement point. cxa1850 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 0 25 50 75 100 125 150 if (ma) case temperature ( c) copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led
3 flux characteristics, easywhite order codes and bins (i f = 1400 ma, t j = 85 c) the following tables provide order codes for xlamp cxa1850 l e ds. for a complete description of the order code nomenclature, please reference bin and o rder code formats (page 12). cct range cri base order codes min. luminous flux @ 1400 ma 2-step order code 4-step order code min typ group flux (lm) @ 85 c flux (lm) @ 25 c* chromaticity region chromaticity region 6500 k 70 75 w4 5225 6014 65f cxa1850-0000-000n00w465f x2 5590 6434 cxa1850-0000-000n00x265f 80 --- w2 4860 5593 65f cxa1850-0000-000n0hw265f w4 5225 6014 cxa1850-0000-000n0hw465f 5700 k 70 75 w4 5225 6014 57f cxa1850-0000-000n00w457f x2 5590 6434 cxa1850-0000-000n00x257f 80 --- w2 4860 5593 57f cxa1850-0000-000n0hw257f w4 5225 6014 cxa1850-0000-000n0hw457f 5000 k 70 75 w4 5225 6014 50h cxa1850-0000-000n00w450h 50f cxa1850-0000-000n00w450f x2 5590 6434 cxa1850-0000-000n00x250h cxa1850-0000-000n00x250f 80 --- w2 4860 5593 50h cxa1850-0000-000n0hw250h 50f cxa1850-0000-000n0hw250f w4 5225 6014 cxa1850-0000-000n0hw450h cxa1850-0000-000n0hw450f 4000 k 70 75 w4 5225 6014 40h cxa1850-0000-000n00w440h 40f CXA1850-0000-000N00W440F x2 5590 6434 cxa1850-0000-000n00x240h cxa1850-0000-000n00x240f 80 --- w2 4860 5593 40h cxa1850-0000-000n0hw240h 40f cxa1850-0000-000n0hw240f w4 5225 6014 cxa1850-0000-000n0hw440h cxa1850-0000-000n0hw440f 3500 k 80 --- v4 4545 5231 35h cxa1850-0000-000n00v435h 35f cxa1850-0000-000n00v435f w2 4860 5593 cxa1850-0000-000n00w235h cxa1850-0000-000n00w235f w4 5225 6014 cxa1850-0000-000n00w435h cxa1850-0000-000n00w435f 93 95 u2 3680 4235 35h cxa1850-0000-000n0yu235h 35f cxa1850-0000-000n0yu235f u4 3955 4552 cxa1850-0000-000n0yu435h cxa1850-0000-000n0yu435f 3000 k 80 --- v4 4545 5231 30h cxa1850-0000-000n00v430h 30f cxa1850-0000-000n00v430f w2 4860 5593 cxa1850-0000-000n00w230h cxa1850-0000-000n00w230f 93 95 t4 3440 3959 30h cxa1850-0000-000n0yt430h 30f cxa1850-0000-000n0yt430f u2 3680 4235 cxa1850-0000-000n0yu230h cxa1850-0000-000n0yu230f copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led notes ? cree maintains a tolerance of 7% on fux and power measurements, 0.005 on chromaticity (ccx, ccy) measurements and a tolerance of 2 on cri measurements. * flux values @ 25 c are calculated and for reference only.
4 cct range cri base order codes min. luminous flux @ 1400 ma 2-step order code 4-step order code min typ group flux (lm) @ 85 c flux (lm) @ 25 c* chromaticity region chromaticity region 2700 k 80 --- v2 4230 4868 27h cxa1850-0000-000n00v227h 27f cxa1850-0000-000n00v227f v4 4545 5231 cxa1850-0000-000n00v427h cxa1850-0000-000n00v427f w2 4860 5593 cxa1850-0000-000n00w227h cxa1850-0000-000n00w227f 93 95 t2 3200 3683 27h cxa1850-0000-000n0yt227h 27f cxa1850-0000-000n0yt227f t4 3440 3959 cxa1850-0000-000n0yt427h cxa1850-0000-000n0yt427f flux characteristics, easywhite order codes and bins (i f = 1400 ma, t j = 85 c) - continued copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led notes ? cree maintains a tolerance of 7% on fux and power measurements, 0.005 on chromaticity (ccx, ccy) measurements and a tolerance of 2 on cri measurements. * flux values @ 25 c are calculated and for reference only.
5 flux characteristics, ansi white order codes and bins (i f = 1400 ma, t j = 85 c) the following tables provide order codes for xlamp cxa1850 l e ds. for a complete description of the order code nomenclature, please reference bin and o rder code formats (page 12). cct range cri base order codes min luminous flux @ 1400 ma chromaticity regions order code min typ group flux (lm) @ 85 c flux (lm) @ 25 c* 6500 k 70 75 w4 5225 6014 1a0, 1b0, 1c0, 1d0 cxa1850-0000-000n00w40e1 x2 5590 6434 cxa1850-0000-000n00x20e1 80 --- w2 4860 5593 1a0, 1b0, 1c0, 1d0 cxa1850-0000-000n0hw20e1 w4 5225 6014 cxa1850-0000-000n0hw40e1 5700 k 70 75 w4 5225 6014 2a0, 2b0, 2c0, 2d0 cxa1850-0000-000n00w40e2 x2 5590 6434 cxa1850-0000-000n00x20e2 80 --- w2 4860 5593 2a0, 2b0, 2c0, 2d0 cxa1850-0000-000n0hw20e2 w4 5225 6014 cxa1850-0000-000n0hw40e2 5000 k 70 75 w4 5225 6014 3a0, 3b0, 3c0, 3d0 cxa1850-0000-000n00w40e3 x2 5590 6434 cxa1850-0000-000n00x20e3 80 --- w2 4860 5593 3a0, 3b0, 3c0, 3d0 cxa1850-0000-000n0hw20e3 w4 5225 6014 cxa1850-0000-000n0hw40e3 4000 k 70 75 w4 5225 6014 5a0, 5b0, 5c0, 5d0 cxa1850-0000-000n00w40e5 x2 5590 6434 cxa1850-0000-000n00x20e5 80 --- w2 4860 5593 5a0, 5b0, 5c0, 5d0 cxa1850-0000-000n0hw20e5 w4 5225 6014 cxa1850-0000-000n0hw40e5 copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led notes ? cree maintains a tolerance of 7% on fux and power measurements, 0.005 on chromaticity (ccx, ccy) measurements and a tolerance of 2 on cri measurements. * flux values @ 25 c are calculated and for reference only.
6 relative spectral power distribution (i f = 1400 ma, t j = 85 c) the following graph is the result of a series of pulsed measurements at 1400 ma and t j = 85 c. electrical characteristics the following graph is the result of a series of steady-state measurements. relative spectral power distribution - white, hot binned, baby 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 380 430 480 530 580 630 680 730 780 relative spectral power wavelength (nm) 5000k, 70 cri 4000k, 70 cri 3000k, 80 cri 3000k, 93 cri 32 33 34 35 36 37 38 500 700 900 1100 1300 1500 1700 1900 2100 voltage (v) current (ma) tc = 25 c tc = 55 c tc = 85 c tc = 105 c copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led
7 relative luminous flux the relative luminous fux values provided below are the ratio of: ? m easurements of cxa1850 at steady-state operation at the given conditions, divided by ? flux measured during binning, which is a pulsed measurement at 1400 ma at t j = 85 c. for example, at steady-state operation of tc = 55 c, i f = 1700 ma, the relative luminous fux ratio is 120% in the chart below. a cxa1850 l e d that measures 5595 lm during binning will deliver 6714 lm (5595 * 1.2) at steady-state operation of tc = 55 c, i f = 1700 ma. 0% 20% 40% 60% 80% 100% 120% 140% 160% 500 700 900 1100 1300 1500 1700 1900 2100 relative luminous flux current (ma) tc = 25 c tc = 55 c tc = 85 c tc = 105 c copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led
8 typical spatial distribution performance groups - brightness (i f = 1400 ma, t j = 85 c) xlamp cxa1850 leds are tested for luminous fux and placed into one of the following bins. group code min. luminous flux @ 1400 ma max. luminous flux @ 1400 ma t2 3200 3440 t4 3440 3680 u2 3680 3955 u4 3955 4230 v2 4230 4545 v4 4545 4860 w2 4860 5225 w4 5225 5590 x2 5590 6010 x4 6010 6430 far field 0% 20% 40% 60% 80% 100% - 90 - 70 - 50 - 30 - 10 10 30 50 70 90 relative luminous intensity angle (o) copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led
9 performance groups - chromaticity (t j = 85 c) xlamp cxa1850 leds are tested for chromaticity and placed into one of the regions defned by the following bounding coordinates. easywhite color temperatures C 4-step code cct x y 65f 6500 k 0.3253 0.3325 0.3249 0.3439 0.3331 0.3514 0.3330 0.3393 57f 5700 k 0.3097 0.3196 0.3079 0.3297 0.3164 0.3382 0.3176 0.3275 50f 5000 k 0.3407 0.3459 0.3415 0.3586 0.3499 0.3654 0.3484 0.3521 40f 4000 k 0.3744 0.3685 0.3782 0.3837 0.3912 0.3917 0.3863 0.3758 35f 3500 k 0.3981 0.3800 0.4040 0.3966 0.4186 0.4037 0.4116 0.3865 30f 3000 k 0.4242 0.3919 0.4322 0.4096 0.4449 0.4141 0.4359 0.3960 27f 2700 k 0.4475 0.3994 0.4573 0.4178 0.4695 0.4207 0.4589 0.4021 easywhite color temperatures C 2-step code cct x y 50h 5000 k 0.3429 0.3507 0.3434 0.3571 0.3475 0.3604 0.3469 0.3539 40h 4000 k 0.3784 0.3741 0.3804 0.3818 0.3867 0.3857 0.3844 0.3778 35h 3500 k 0.4030 0.3857 0.4061 0.3941 0.4132 0.3976 0.4099 0.3890 30h 3000 k 0.4291 0.3973 0.4333 0.4062 0.4395 0.4084 0.4351 0.3994 27h 2700 k 0.4528 0.4046 0.4578 0.4138 0.4638 0.4152 0.4586 0.4060 copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led
10 ansi white bins code cct bin code x y 0e1 6500 k 1a0 0.3048 0.3207 0.3130 0.3290 0.3144 0.3186 0.3068 0.3113 1b0 0.3028 0.3304 0.3115 0.3391 0.3130 0.3290 0.3048 0.3207 1c0 0.3115 0.3391 0.3205 0.3481 0.3213 0.3373 0.3130 0.3290 1d0 0.3130 0.3290 0.3213 0.3373 0.3221 0.3261 0.3144 0.3186 ansi white bins code cct bin code x y 0e2 5700 k 2a0 0.3215 0.3350 0.3290 0.3417 0.3290 0.3300 0.3222 0.3243 2b0 0.3207 0.3462 0.3290 0.3538 0.3290 0.3417 0.3215 0.3350 2c0 0.3290 0.3538 0.3376 0.3616 0.3371 0.3490 0.3290 0.3417 2d0 0.3290 0.3417 0.3371 0.3490 0.3366 0.3369 0.3290 0.3300 ansi white bins code cct bin code x y 0e5 4000 k 5a0 .3670 .3578 .3702 .3722 .3825 .3798 .3783 .3646 5b0 .3702 .3722 .3736 .3874 .3869 .3958 .3825 .3798 5c0 .3825 .3798 .3869 .3958 .4006 .4044 .3950 .3875 5d0 .3783 .3646 .3825 .3798 .3950 .3875 .3898 .3716 ansi white bins code cct bin code x y 0e3 5000 k 3a0 .3371 .3490 .3451 .3554 .3440 .3427 .3366 .3369 3b0 .3376 .3616 .3463 .3687 .3451 .3554 .3371 .3490 3c0 .3463 .3687 .3551 .3760 .3533 .3620 .3451 .3554 3d0 .3451 .3554 .3533 .3620 .3515 .3487 .3440 .3427 performance groups - chromaticity (t j = 85 c) - continued copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led
11 cree easywhite bins plotted on the cie 1931 color space (t j = 85 c) cree ansi white bins plotted on the cie 1931 color space (t j = 85 c) 2700k 3000k 3500k 4000k 4500k 5000k 5700k 6500k 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.44 0.29 0.30 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.40 0.41 0.42 0.43 0.44 0.45 0.46 0.47 0.48 0.49 ccy ccx ansi c76.377 quadrangle easywhite 4 - step easywhite 2 - step 4000k 4500k 5000k 5700k 6500k 3a 3b 3c 3d 5a 5b 5c 5d 1 a 1b 1c 1d 2 a 2b 2c 2d 0.3 0 0.3 1 0.32 0.33 0.3 4 0.3 5 0.36 0.3 7 0.3 8 0.39 0.4 0 0.4 1 0.4 2 0.28 0.29 0.30 0.31 0.32 0.33 0.34 0.35 0.36 0.37 0.38 0.39 0.40 0.41 0.42 ccy ccx a n s i c 76.37 7 q u ad r an g l e copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led
12 bin and order code formats bin codes and order codes are confgured as follows: order code bin code mechanical dimensions dimensions are in mm. tolerances unless otherwise specifed: .x + .10 .xx + .03 .xxx + .010 x + 1 sssss cc -hhhh-hhhggnnnnnn series = cxa1 8 internal code cri specification 0 = standard cr i h = 80 min cr i y = 93 min cr i kit code vf class: n0 = 35- v clas s pe rformance clas s sssss cc - www -ff-ggr - aaaaa series = cxa1 8 chromaticity bi n vf class: n0 = 35- v clas s internal code cri specification b = 70 min cr i h = 80 min cr i y = 93 min cr i flux bin pe rformance clas s copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led
13 thermal design the cxa family of l e d arrays can include over a hundred different le d die inside one package, and thus over a hundred different junction temperatures (t j ). cree has intentionally removed junction-temperature-based operating limits and replaced the commonplace maximum t j calculations with maximum ratings based on forward current (i f ) and case temperature (tc). no additional calculations are required to ensure the cxa l e d is being operated within its designed limits. please refer to page 2 for the operating limit specifcation. cree has measured the temperature at the bottom of the package, commonly referred to as the solder point (t sp ), and found this value to be equivalent to the temperature at the tc location at the top of the package once the l e d has reached thermal equilibrium. there is no need to calculate for t j inside the package, as the thermal management design process, specifcally from t sp to ambient (t a ), remains identical to any other l e d component. for more information on thermal management of cree xlamp l e ds, please refer to the xlamp thermal m anagement application note at www.cree.com/xlamp_app_notes/thermal_management. for cxa soldering recommendations and more information on thermal interface materials (ti m ) and connection methods, please refer to the cree xlamp cxa family le ds soldering and handling document at www.cree.com/xlamp_app_notes/cxa_sh. to keep the cxa1850 l e d at or below the maximum rated tc, the case to ambient temperature thermal resistance (r_c-a) must be at or below the maximum r_c-a value shown on the following graph, depending on the operating environment. the y - axis in the graph is a base 10 logarithmic scale. as the fgure at right shows, the r_c-a value is the sum of the thermal resistance of the tim (r_tim) plus the thermal resistance of the heat sink (r_hs). r_j-c tc r_ tim r_ hs ta r_ j-c tc r_c-a ta cxa1850 0.01 0.10 1.00 10.00 500 700 900 1100 1300 1500 1700 1900 2100 maximum r_c - a current (ma) ta = 25 c ta = 55 c ta = 85 c ta = 105 c copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led
14 notes lumen maintenance projections cree now uses standardized i e s lm -80-08 and tm -21-11 methods for collecting long-term data and extrapolating led lumen maintenance. for information on the specifc lm-80 data sets available for this led, refer to the public lm-80 results document at www.cree.com/xlamp_app_notes/l m80_results. p lease read the xlamp long-term lumen m aintenance application note at www.cree.com/xlamp_app_notes/lumen_ maintenance for more details on crees lumen maintenance testing and forecasting. p lease read the xlamp thermal m anagement application note at www.cree.com/xlamp_app_notes/thermal_management for details on how thermal design, ambient temperature, and drive current affect the l e d junction temperature. vision advisory claim users should be cautioned not to stare at the light of this le d product. the bright light can damage the eye. copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led
15 packaging cree cxa1850 l e ds are packaged in trays of 20. five trays are sealed in an anti-static bag and placed inside a carton, for a total of 100 leds per carton. each carton contains 100 leds from the same performance bin. dimensions are in inches. tolerances: .x + .1 .xx + .05 .xxx + .005 x + 1 size title of rev. sheet c drawing no. date date date check final protective finish material approved drawn by third angle projection scale a b c d 1 2 3 4 5 6 6 5 4 3 2 1 a b c d phone (919) 313-5300 fax (919) 313-5558 4600 silicon drive durham, n.c 27703 unauthorized person without the written consent may not be copied, reproduced or disclosed to any confidential information of cree, inc. this plot contained within are the proprietary and cree confidential. this plot and the information of cree inc. notice x .5 .xxx .25 .xx .75 .x 1.5 for sheet metal parts only .xx .25 .xxx .125 x .5 unless otherwise specified dimensions are in millimeters and after finish. tolerance unless specified: surface finish: 1.6 7.125 7.625 1.125 r .375 1.063 2 / 2 8.000 a cxa1850 le1801 marketing spec 05/08/12 d. cronin revisons rev description by date app'd label with cree bin code, qty, lot # patent label is located on underside of cover label with cree bin code, qty, lot # label with cree bin code, qty, lot # bag size title of rev. sheet c drawing no. date date date check final protective finish material approved drawn by third angle projection scale a b c d 1 2 3 4 5 6 6 5 4 3 2 1 a b c d phone (919) 313-5300 fax (919) 313-5558 4600 silicon drive durham, n.c 27703 unauthorized person without the written consent may not be copied, reproduced or disclosed to any confidential information of cree, inc. this plot contained within are the proprietary and cree confidential. this plot and the information of cree inc. notice x .5 .xxx .25 .xx .75 .x 1.5 for sheet metal parts only .xx .25 .xxx .125 x .5 unless otherwise specified dimensions are in millimeters and after finish. tolerance unless specified: surface finish: 1.6 7.125 7.625 1.125 r .375 1.063 2 / 2 8.000 a cxa1850 le1801 marketing spec 05/08/12 d. cronin revisons rev description by date app'd label with cree bin code, qty, lot # patent label is located on underside of cover label with cree bin code, qty, lot # label with cree bin code, qty, lot # bag size title of rev. sheet c drawing no. date date date check final protective finish material approved drawn by third angle projection scale a b c d 1 2 3 4 5 6 6 5 4 3 2 1 a b c d phone (919) 313-5300 fax (919) 313-5558 4600 silicon drive durham, n.c 27703 unauthorized person without the written consent may not be copied, reproduced or disclosed to any confidential information of cree, inc. this plot contained within are the proprietary and cree confidential. this plot and the information of cree inc. notice x .5 .xxx .25 .xx .75 .x 1.5 for sheet metal parts only .xx .25 .xxx .125 x .5 unless otherwise specified dimensions are in millimeters and after finish. tolerance unless specified: surface finish: 1.6 7.125 7.625 1.125 r .375 1.063 2 / 2 8.000 a cxa1850 le1801 marketing spec 05/08/12 d. cronin revisons rev description by date app'd label with cree bin code, qty, lot # patent label is located on underside of cover label with cree bin code, qty, lot # label with cree bin code, qty, lot # bag copyright ? 2014 cree, inc. all rights reserved. the information in this document is subject to change without notice. cree ? , the cree logo, xlamp ? and easywhite ? are registered trademarks of cree, inc. xlamp cxa1850 led

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