CR14-31L-50K-S datasheet(3/3 Pages) CREE

Part #	CR14-31L-50K-S

Description	CR14 Architectural LED Troffer

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Manufacturer	CREE [Cree, Inc]

Direct Link	http://www.cree.com/

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(800) 236-6800 F (262) 504-5415

US: www.cree.com/lighting

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(800) 473-1234 F (800) 890-7507

Canada: www.cree.com/canada

Patent www.cree.com/patents. Cree®, TrueWhite®, and Cree TrueWhite® are registered trademarks, and the Cree logo, the Cree

TrueWhite Technology logo, and CR14™ are trademarks of Cree, Inc. The UL logo is a registered trademark of UL LLC. Lutron®, Lutron

EcoSystem®, EcoSystem®, and the Lutron EcoSystem Enabled logo are registered trademarks of Lutron, Inc. The DLC QPL logo is a

registered trademark of Northeast Energy Efficiency Partnerships, Inc.

CR14™ 1' x 4' Architectural LED Troffer

Photometry

CR14-40L-30K BASED ON LTL REPORT TEST #: 24294

Luminaire photometry has been conducted by a NVLAP accredited testing laboratory in accordance with IESNA LM-79-08. IESNA LM-79-08 specifies the entire luminaire as the source

resulting in a luminaire efficiency of 100%.

Coefficients Of Utilization – Zonal Cavity

Method

RC %:

80

RW %:

70

50

30

10

RCR: 0

119

1

110

106

102

73

2

101

93

87

82

3

92

82

75

69

4

85

74

65

59

5

78

66

57

51

6

72

60

51

45

7

67

54

46

40

8

63

49

41

36

9

58

45

37

32

10

55

42

34

29

Effective Floor Cavity Reflectance: 20%

Average Luminance Table (cd/m2)

Horizontal Angle

0°

45°

90°

45°

5,407

55°

5,015

5,002

4,673

65°

4,589

4,315

3,572

75°

3,039

1,690

1,282

85°

1,727

1,249

1,321

Zonal Lumen Summary

Zone

Lumens

% Lamp

Luminaire

0-30

1,220

N/A

30.8%

0-40

1,995

N/A

50.4%

0-60

3,385

N/A

85.5%

0-90

3,959

N/A

100%

0-180

3,959

N/A

100%

Reference www.cree.com/Lighting/Products/Indoor/Troffers/CR-Series for detailed photometric data

Open Space

Spacing

Lumens

Wattage

LPW

w/ft2

Average fc

8 x 8

2200L

22W

100

0.35

30

4000L

40W

100

0.69

54

4000L

30.5W

125

0.56

54

5000L

50W

100

0.78

68

8 x 10

2200L

22W

100

0.28

25

4000L

40W

100

0.55

45

4000L

30.5W

125

0.45

45

5000L

50W

100

0.62

57

10 x 10

2200L

22W

100

0.22

21

4000L

40W

100

0.44

38

4000L

30.5W

125

0.36

38

5000L

50W

100

0.50

48

10 x 12

2200L

22W

100

0.19

17

4000L

40W

100

0.37

30

4000L

30.5W

125

0.30

30

5000L

50W

100

0.42

38

9' ceiling: 80/50/20 reflectances; 2.5' workplane, open room. LLF: 1.0 Initial Open Space: 50' x 40' x 10'

Application Reference

Based on CR14-40L-30K Luminaire

Similar Part No. - CR14-31L-50K-S

Manufacturer	Part #	Datasheet	Description
Cree, Inc	CR14-40L-30K-CMA	370Kb / 3P	CR14 Architectural LED Troffer
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