Horticulture lighting

1. Horticulture Lighting

DIVIDER SLIDE EXAMPLE
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2. Horticulture Training

•Types of horticulture lighting
•Terminology
•Science behind the spectrum
•Starting point in choosing LEDs
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2

3. Types of Horticulture Lighting

DIVIDER SLIDE EXAMPLE
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4. Applications

Green House
Directional High Bay
4
Rack Lighting
Linear
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Inter Lighting
Linear

5. Traditional Technologies

5
DE High Pressure
Sodium
Min Height
to
Canopy 3.2ft / 1m
Florescent Tubes
Min Height to
Canopy
0.167ft / 0.05m
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Canopy

6. DE High Pressure Sodium

6
•Typically seen in Greenhouses
•Used as supplemental light
•10000hr bulb life
•(DE) Double-ended very efficient
•Very High PPF
•High Uniformity
•Large amount of radiated heat
3.2ft / 1m
* PPF – Photosynthetic Photon
Flux
Canopy
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7. Fluorescent Tube

7
•Typically seen in Vertical
Applications
•Used as a main source
•20,000hr Lifetime
•Very economical upfront costs
•Good PPFD when placed close
•Lot of spill light
•Low amount of radiated heat
*PPFD – Photosynthetic Photon
Flux Density
0.167ft / 0.05m
Canopy
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8. Benefits to LEDs

Ability to tune spectrum
Optical control
Higher target efficiency
Low radiated heat
Instant on/of
No restrike time
Long lifetimes
Lower Maintenance Costs
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8

9. Terminology

DIVIDER SLIDE EXAMPLE
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10. Photosynthesis

Light – The only part we care
about
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10

11. Micromol

Not Lumens. Photons.
Refers to the amount of photons that is
available for plants to use in
photosynthesis.
Can be calculated by using spd data in
the Planck-Einstein Relation.
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11

12. Photosynthetically Active Radiation (PAR)

Not Lumens. Photons.
Spectral range between 400-700nm for which
photosynthesis occurs
Often referred to as a unit, but it is not.
Can refer to either:
1) PPF – Photosynthetic Photon Flux (μmol·s-1)
2) PPFD - Photosynthetic Photon Flux Density
(μmol·m-2·s-1)
PPFD being the common reference
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400nm
12
700nm

13. Photosynthetic Photon Flux (PPF)

PPF is the total amount of
micromoles from the
fixture. It is measured in
μmol·s-1.
Similar idea to lumens.
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13

14. Photosynthetic Photon Flux Density (PPFD)

PPFD is the total amount
of micromoles falling on a
specified area.
It is measured in μmol·m2· -1
s .
Similar idea to lux.
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14

15. Spill Light

Spill light is wasted light.
Therefore it is imperative
to have high target
efficiency.
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15

16. Spill Light

16
Putting fixtures next to
wall is one common
strategy to increase
target efficiency.
Wall 20%
Efficiency
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17. Measurement

Standard PPFD measurements are
performed on a 4x4’ grid at the
manufacturer’s recommended height.
Measurements can go up to 10x10’ grid.
Measurements are performed with a
handheld meter, which is why PPFD
is commonly used as a performance
metric rather than PPF
Unfortunately many of these tests can
be center-weighted, which can falsely
skew data.
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17

18. Science Behind the Spectrum

DIVIDER SLIDE EXAMPLE
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19. What is the Ideal Spectrum?

Predominately two main approaches for LED Horticulture lights:
1. Red (660nm) and Blue (450nm)
2. Full Spectrum
–
The current trend of new opportunities
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19

20. Red and Blue

Chlorophyll a & b
Chlorophyll refers to the pigment used
to absorb radiation for photosynthesis.
Chl a efficiently absorbs red while Chl
b efficiently absorbs blue.
These absorption peaks were the
reason why 440-450nm and 660nm
are quoted throughout the LED
horticulture industry.
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20
455nm
659nm

21. Red and Blue

Studies were derived from in-vitro on
green algae. Higher order plant organisms
difer in response.
In vivo, the probability of a pigment
absorbing light absorption depends on:
1) the specific protein that the pigment is
bound to
2) the orientation of the pigment-protein
complex within the cell
3) the forces exerted by the surrounding
medium on the pigment-protein
complex.
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21

22. Full Spectrum

22
1971 McCree Curve
Average photosynthetic response
of 20+ terrestrial crop plants.
Plants have a broad photosynthetic
response.
Red (620-630nm) have the highest
response.
Green (555nm) has similar to
better response than blue.
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430nm 450nm 630nm 660nm

23. Chlorophyll a & b vs McCree Curve

Chlorophyll a & b vs McCree Curve
Photosynthetic action spectra for
the green alga Ulva (two cell
layers) and higher plants (multiple
cell layers).
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23

24. “Green Is Useless” – Inaccurate

Research is still in its infancy and often conflicting. Many studies have
shown:
•Increased yields with white only or supplemental green light
•Higher penetration of green light through the canopy
•Higher photosynthetic efficiency under saturated light
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24

25. Full Spectrum Lighting

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25

26. Starting Point in Choosing LEDs

DIVIDER SLIDE EXAMPLE
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27. Which LEDs to choose?

Traditionally LED solutions
focused on 440nm and 660nm
(blue and red) with a
supplement of 730nm.
Dynamic shift in the industry
to create a broad spectrum
based luminaire.
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27

28. Which LEDs to choose?

Horticulture market has no set methodology as to what is right and
what is wrong. Approaches include:
–
–
–
–
Red and Blue only
Many discrete colors from UV to IR
White only with higher CRI for the red content
White with supplemental colors (Red and Blue)
Customer is the expert as there are many recipes on the market
– XP and XQ footprint ofers the most versatility
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28

29. Target LEDs

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30. Target LEDs

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30

31. Target LEDs

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31

32. SPD: White LEDs

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33. SPD: Color LEDs

33
Royal blue (450nm)
Warm White
Photored (660nm)
Far Red (730nm)
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34. Design Goals

Mimic the gold standard at much lower wattage
• Similar spd distribution to HPS
• Equivalent performance to a 1000W HPS on
a 4x4’ grid, while having identical uniformity
• IP67 Sealed
• Natural Convection (No Fans)
• Modular
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34

35. Reference Design

DIVIDER SLIDE EXAMPLE
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36.

36
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37.

37
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38. Module

Roughly the size of a sheet of paper.
4 Modules used in fixture.
Size: 11.3x7.2x2.4” (287x183x61mm)
Weight: 5lbs (2.26kg)
Heatsink: Aavid Thermalloy, 62625
Optics: 4x LEDiL CS14130
PCB: SinkPad
TIM: Graftech
LEDs
36 Cree XPG3 4000K, S4, 70 CRI
12 Cree XPE Photored 660nm
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38

39. Wavelength Distribution

39
Gavita
Wavelengths
UV
300
Violet/Blue
431
Green/Yellow
501
Orange/Red
581
Far Red
701
IR
781
399
500
580
700
780
1000
PPF%
0.0%
4.8%
26.2%
68.9%
0.0%
0.0%
RF%
0.3%
4.9%
21.7%
51.8%
6.0%
15.3%
399
500
580
700
780
1000
PPF%
0.0%
13.7%
29.2%
57.1%
0.0%
0.0%
RF%
0.0%
17.3%
30.1%
50.8%
1.8%
0.0%
Reference Design
UV
Violet/Blue
Green/Yellow
Orange/Red
Far Red
IR
Wavelengths
300
431
501
581
701
781
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40. Horticulture Reference Design (4x Modules)

Gavita 1000W DE HPS
Grid (ft)
Distance (ft)
4x4’
3.28
40
PPFD Center
381
PPFD Average Uniformity (min:max)
287
1:2
Typical LED Replacement with 60deg optic
Grid (ft)
Distance (ft)
PPFD Center
4x4’
2
710
4x4’
4.3
185
PPFD Average Uniformity (min:max)
273
1:33
148
1:2
Reference design *Distance depends on optics
Grid (ft)
Distance (ft)
PPFD Center
4x4’
1
400
4x4’
5
394
PPFD Average Uniformity (min:max)
320
1:2
303
1:2
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41. XLamp MH Family: Tiny High Bay & LM-80 vs DURIS S 10

XLamp MH Family: Tiny High Bay & LM-80 vs DURIS S 10
DIVIDER SLIDE EXAMPLE
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42. Tiny High Bay (LFI Version) - Lower System Cost High Bay

Canopy
Only 3lbs !
High Bay
Key Messaging
• Cree LEDs enable a much smaller & lighter
solution than using mid-power LEDs
• Less metal / smaller size = lower cost
• Passively cooled
• Seeing is Believing!
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13,000k lm / 130 LPW / 100W
85% lighter & smaller than DLC
comparables
42

43. Tiny High Bay - Lower System Cost High Bay

43
MHD-G Flux Bin
Lumens
Power
Efficacy
N2 (1590)
12,000 lm
100W
120 lm/W
N4 (1710)
13,000 lm
100W
130 lm/W
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44. DURIS S 10 (P7LP32.EM) LM-80 Results

• EMC 7070 package
• 6k hours of LM-80 published Feb 2016
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44

45. LM-80: DURIS S 10 (P7LP32.EM) vs XLamp MHD-G @ 85°C

Ceramic
Ceramic advantage
advantage vs
vs EMC:
EMC:
Better
lifetime
at
higher
Better lifetime at higher temperature
temperature &
& current
current
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45

46. Will DURIS S 10 (P7LP32.EM) Make Reported L70 50k Hours @ 85°C?

46
L70
L70 50k
50k target
target @
@ 8.5k
8.5k
hours
hours
• Plastic packages
tend to degrade
faster after 6k
hours of LM-80
testing
• So there is a
chance that
DURIS S 10 will
not achieve even
Reported L70 50k
hours @ 85°C!
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47. LM-80: DURIS S 10 (P7LP32.EM) vs XLamp MHD-G @ 105°C

No
No OSRAM
OSRAM DURIS
DURIS SS 10
10 data
data @
@ 105°C!!
105°C!!
Ceramic
Ceramic advantage
advantage vs
vs EMC:
EMC:
Better
lifetime
at
higher
Better lifetime at higher temperature
temperature &
& current
current
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47

48. OSRAM DURIS S 10 (P7LP32.EM) vs XLamp MHD-G: LM-80 Position

LM-80 Data?
48
Tsp for DLC 3/4 Support
55°C
85°C
105°C
Standard
Premium
LED
Package
Type
Cree XLamp MHD-E/G
Ceramic
Yes
Yes
Yes
105°C
105°C
OSRAM DURIS S 10
EMC
Yes
Yes
No
<85°C
No Path
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49. XLamp MH Family LM-80 Testing Summary

Current (A)
LED
MHB-A
MHD-E
49
Reported Lifetimes
(hrs)
LM-80 Target Dates
9V
18V
36V
Tsp
(°C)
0.320
0.160
0.080
0.500
0.250
0.500
8.5k hr
>= 10k hr
L70
L90
105
Now
Apr 2016
>51.4k
>51.4k
0.125
85
Now
Apr 2016
>51.4k
29.5k
0.250
0.125
105
Now
Apr 2016
>51.4k
30.2k
0.700
0.350
0.175
85
Now
Apr 2016
>51.4k
21.4k
0.600
0.300
0.150
105
Now
Apr 2016
>51.4k
>51.4k
0.800
0.400
0.200
85
Nov 2016
Mar 2017
May 2017
0.800
0.400
0.200
105
Nov 2016
Mar 2017
May 2017
1.000
0.500
0.250
85
Now
Apr 2016
>54.4k
>54.4k
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6k hr

50. Brighter XLamp MK-R LED

DIVIDER
SLIDE
EXAMPLE
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51. XLamp MK-R White Standard Order Codes

Brighter Bin
51
For a complete listing of available order codes, refer to the Binning & Labeling document
Min Flux
(700 mA,
Tj=85°C)
J4
>5000K
(051)
5000K
(50F)
4000K
(40F)
3500K
(35F)
3000K
(30F)
2700K
(27F)
1079
Flux
Flux
Flux
(700 mA,
25°C)
(1.0A, 85°C)
(1.25A,
85°C)
1299
1734
2055
J2
1040
1040
1040
1040
1040
1040
1206
1388
1643
H4
970
970
970
970
970
970
1125
1295
1532
H2
900
900
900
900
900
900
1044
1201
1422
G4
840
840
840
840
840
840
974
1121
1327
G2
780
780
780
780
780
780
905
1041
1232
F4
730
730
730
730
730
730
847
974
1153
F2
680
680
680
680
680
680
789
908
1074
E4
635
635
635
635
635
635
737
848
1003
E2
590
590
590
590
590
590
684
788
932
D4
550
550
550
550
550
550
638
734
Minimum luminous flux @ 700mA, 85°C (lm)
869
65 CRI typ (0)
70 CRI typ (B)
MK-R White
MKRAWT-00-0000-0D0HG430F
CRI Flux Color
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80 CRI min (H)
90 CRI min (U)

52. LM-80 Updates

DIVIDER SLIDE EXAMPLE
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53. XLamp CXA2 Family LM-80 Summary

53
All LED currents shown at 36V, except 3590 at 72V
LM-80 Data
Source
Tc
(°C)
TM-21
Reported Lifetime
Max Current @ 85°C
CXB
1304
CXB
1507
CXB
1512
CXB
1816
CXB
1820
CXB
1830
CXB
2530
CXB
2540
CXB
3050
CXB
3070
CXB
3590
250
375
600
900
1050
1400
1600
2100
2500
2800
1800
375
600
769
1044
1094
1346
1923
2500
CXB3050
85
L90(10k) > 55.4k hrs
192
CXB2530
85
L90(9k) > 47.1k hrs
229
CXB3070
85
6k hrs @ Mar 2017
CXB3590
85
L90(8k) > 44.4k hrs
Max Current @ 105C
900
1600
1227
2800
177
367
450
735
727
1050
1159
1454
1731
450
462
630
653
808
1146
1500
1262
1641
CXB3050
105
L90(10k) > 55.4k hrs
115
231
CXB2530
105
L90(9k) > 47.1k hrs
171
343
CXB3070
105
6k hrs @ Mar 2017
CXB3590
105
L90(7k) > 36.0k hrs
673
1764
1400
2100
1401
1200
727
984
2250
1321
Legend:
xxx
Tested LM-80 condition
xxx
LM-80 coverage @ >90% of max current
LM-80 coverage
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1050

54. XLamp CXA2 Family TM-21 Lifetime (CXB3050)

54
Current
1500 mA
CXB
V
Current
Ta/Tsp
105°C
1304
9V
460 mA
α
8.042E-07
1304
18V
230 mA
β
0.9828
1304
36V
115 mA
Duration
10,080 hrs
1507
18V
462 mA
Calculated L90
109,000 hrs
1507
36V
231 mA
1512
18V
900 mA
Calculated L80
>166,000 hrs
1512
36V
450 mA
Calculated L70
>166,000 hrs
1816
36V
462 mA
Reported L90
>55,400 hrs
1820
36V
630 mA
Reported L80
>55,400 hrs
1830
36V
653 mA
Reported L70
>55,400 hrs
2530
36V
808 mA
2540
36V
1146 mA
Notes:
Results for tested model (CXB3050) applied to other arrays per
ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and
are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved

55. XLamp CXA2 Family TM-21 Lifetime (CXB3050)

55
Current
2500 mA
CXB
V
Current
Ta/Tsp
85°C
1304
9V
768 mA
α
5.004E-07
1304
18V
384 mA
β
0.9784
1304
36V
192 mA
Duration
10,080 hrs
1507
18V
750 mA
Calculated L90
>166,000 hrs
1507
36V
375 mA
1512
18V
1200 mA
Calculated L80
>166,000 hrs
1512
36V
600 mA
Calculated L70
>166,000 hrs
1816
36V
769 mA
Reported L90
>55,400 hrs
1820
36V
1044 mA
Reported L80
>55,400 hrs
1830
36V
1094 mA
Reported L70
>55,400 hrs
2530
36V
1346 mA
2540
36V
1923 mA
Notes:
Results for tested model (CXB3050) applied to other arrays per
ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and
are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved

56. XLamp CXA2 Family TM-21 Lifetime (CXB2530)

56
Current
1200 mA
CXB
V
Current
Ta/Tsp
105°C
1304
9V
684 mA
α
7.458E-07
1304
18V
342 mA
β
0.9898
1304
36V
171 mA
Duration
8,568 hrs
1507
18V
686 mA
Calculated L90
128,000 hrs
1507
36V
343 mA
1816
36V
673 mA
Calculated L80
>141,000 hrs
Calculated L70
>141,000 hrs
Reported L90
>47,100 hrs
Reported L80
>47,100 hrs
Reported L70
>47,100 hrs
Notes:
Results for tested model (CXB2530) applied to other arrays per
ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and
are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved

57. XLamp CXA2 Family TM-21 Lifetime (CXB2530)

57
Current
1600 mA
CXB
V
Current
Ta/Tsp
85°C
1304
9V
916 mA
α
5.356E-07
1304
18V
458 mA
β
0.9831
1304
36V
229 mA
Duration
8,568 hrs
1816
36V
900 mA
Calculated L90
>141,000 hrs
Calculated L80
>141,000 hrs
Calculated L70
>141,000 hrs
Reported L90
>47,100 hrs
Reported L80
>47,100 hrs
Reported L70
>47,100 hrs
Notes:
Results for tested model (CXB2530) applied to other arrays per
ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and
are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved

58. XLamp CXA2 Family TM-21 Lifetime (CXB3590 72V)

58
Current
1050 mA
CXB
V
Current
Ta/Tsp
105°C
3070
36V
1321 mA
α
1.266E-06
3590
36V
2100 mA
β
0.9970
Duration
6,552 hrs
Calculated L90
80,900 hrs
Calculated L80
>108,000 hrs
Calculated L70
>108,000 hrs
Reported L90
>36,000 hrs
Reported L80
>36,000 hrs
Reported L70
>36,000 hrs
Notes:
Results for tested model (CXB3590 72V) applied to other arrays
per ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and
are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved

59. XLamp CXA2 Family TM-21 Lifetime (CXB3590 72V)

59
Current
1400 mA
CXB
V
Current
Ta/Tsp
85°C
3070
36V
1764 mA
α
7.976E-07
3590
36V
2800 mA
β
1.001
Duration
8,064 hrs
Calculated L90
>133,000 hrs
Calculated L80
>133,000 hrs
Calculated L70
>133,000 hrs
Reported L90
>44,400 hrs
Reported L80
>44,400 hrs
Reported L70
>44,400 hrs
Notes:
Results for tested model (CXB3590 72V) applied to other arrays
per ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and
are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved

60. XLamp XHP70 LM-80 Testing Summary

Current (A)
CCT
3000K
60
LM-80 Target Dates / Reported L90
Lifetime Expectation (hrs)
6V
12V
Tsp
(°C)
6k hr
8.5k hr
10k hr
L70
L90
2.100
1.050
85
>39.3k
May 2016
Aug 2016
>300k
100k
2.100
1.050
105
>36.3k
May 2016
Aug 2016
200k
50k
2.100
1.050
125
>36.3k
May 2016
Aug 2016
60k
---
3.000
1.500
85
>39.3k
May 2016
Aug 2016
200k
50k
3.000
1.500
105
36.2k
May 2016
Aug 2016
100k
30k
4.200
2.100
85
>39.3k
May 2016
Aug 2016
100k
30k
4.200
2.100
105
17.9k
May 2016
Aug 2016
50k
---
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved

61. XLamp XP-L LM-80 Testing Summary

61
LM-80 Target Dates
CCT
Curre
nt (A)
Tsp
(°C)
6k hr
Reported Lifetime (hrs)
8.5k hr
10k hr
Jun 2016
Aug 2016
L70
L90
>36.3k
>36.3k
0.700
85
0.700
125
1.050
85
Jun 2016
Aug 2016
1.050
105
Jun 2016
Aug 2016
1.500
85
1.500
105
Not active, no further updates
>60.5k
37.7k
2.100
85
Not active, no further updates
>60.5k
42.1k
2.100
105
Not active, no further updates
>36.3k
24.0k
3.000
85
Not active, no further updates
>36.3k
16.3k
May 2016
3000K
Apr 2016
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved

62. XLamp MH Family LM-80 Testing Summary

Current (A)
LED
MHB-A
MHD-E
62
Reported Lifetimes
(hrs)
LM-80 Target Dates
9V
18V
36V
Tsp
(°C)
0.320
0.160
0.080
0.500
0.250
0.500
8.5k hr
>= 10k hr
L70
L90
105
Now
Apr 2016
>51.4k
>51.4k
0.125
85
Now
Apr 2016
>51.4k
29.5k
0.250
0.125
105
Now
Apr 2016
>51.4k
30.2k
0.700
0.350
0.175
85
Now
Apr 2016
>51.4k
21.4k
0.600
0.300
0.150
105
Now
Apr 2016
>51.4k
>51.4k
0.800
0.400
0.200
85
Nov 2016
Mar 2017
May 2017
0.800
0.400
0.200
105
Nov 2016
Mar 2017
May 2017
1.000
0.500
0.250
85
Now
Apr 2016
>54.4k
>54.4k
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved
6k hr

63. XLamp XHP35 LM-80 Testing Summary

Current (A)
CCT
3000K
63
Reported Lifetimes /
Lifetime Expectations (hrs)
LM-80 Target Dates
12V
Tsp
(°C)
6k hr
8.5k hr
10k hr
L70
L90
0.350
85
Jul 2016
Oct 2016
Jan 2017
>300k
100k
0.350
105
Jul 2016
Oct 2016
Jan 2017
>100k
>36k
0.350
125
Jul 2016
Oct 2016
Jan 2017
100k
30k
0.525
85
May 2016
Sep 2016
Dec 2016
>300k
100k
0.525
105
May 2016
Sep 2016
Dec 2016
>100k
>36k
0.525
125
Jul 2016
Oct 2016
Jan 2017
60k
---
0.700
85
May 2016
Jul 2016
>36.3k
>36.3k
0.700
105
May 2016
Jul 2016
>36.3k
31.7k
1.050
85
May 2016
Jul 2016
>36.3k
28.4k
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved

64. XLamp XHP50 LM-80 Testing Summary

Current (A)
CCT
3000K
64
LM-80 Target Dates
6V
12V
Tsp
(°C)
6k hr
1.400
0.700
85
1.400
0.700
1.400
10k hr
L70
L90
Now
Jun 2016
>36.3k
>36.3k
105
Now
Jun 2016
>36.3k
>36.3k
0.700
125
Now
Jun 2016
>36.3k
19.7k
2.100
1.050
85
Now
Jun 2016
>36.3k
>36.3k
2.100
1.050
105
Now
Jun 2016
>36.3k
18.6k
3.000
1.500
85
Now
Jun 2016
>36.3k
29.9k
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved
8.5k hr
Reported Lifetimes (hrs)

65. XLamp XT-E LM-80 Testing Summary

65
LM-80 Target Dates
CCT
3000K
Tsp
(°C)
6k hr
0.500
85
0.500
105
1.000
Current (A)
>=10k hr
L70
L90
Now
May 2016
>42.3k
>42.3k
Now
May 2016
>39.3k
>39.3k
55
Now
>99.8k
45.6k
1.000
85
Now
104k
35.5k
1.000
85
May 2016
1.000
105
Now
65.2k
21.0k
1.000
105
May 2016
CREE CONFIDENTIAL AND PROPRIETARY :: © 2016 Cree, Inc. All rights reserved
8.5k hr
Reported Lifetimes (hrs)