XLAMP® XB-D LED

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registered trademarks of Cree LED. UL® and the UL logo are registered trademarks of UL LLC.

CLD-DS45

REV 18

21

THERMAL DESIGN - CONTINUED

PERFORMANCE GROUPS – LUMINOUS FLUX

XLamp XB-D LEDs, except royal blue, are tested for luminous flux and placed into one of the following luminous-flux groups. These

groups, appended with a 0, are used in the Bin Code “Luminous or radiant flux group.”

Group Code

Minimum Luminous Flux (lm)

@ 350 mA

Maximum Luminous Flux (lm)

@ 350 mA

K2

30.6

35.2

K3

35.2

39.8

M2

39.8

45.7

M3

45.7

51.7

N2

51.7

56.8

N3

56.8

62

N4

62

67.2

P2

67.2

73.9

P3

73.9

80.6

P4

80.6

87.4

Q2

87.4

93.9

Q3

93.9

100

Q4

100

107

Q5

107

114

R2

114

122

R3

122

130

R4

130

139

R5

139

148

S2

148

156

S3

156

164

red-orange, red

0

200

400

600

800

1000

1200

0

20

40

60

80

100

120

140

160

Ambient Temperature (ºC)

Rj-a = 10°C/W

Rj-a = 15°C/W

Rj-a = 20°C/W

Rj-a = 25°C/W

Red-Orange, Red