White Light Photometrics

 

Foot Candles at 10' away

Lux at 3m away

CCT

Q25R2

Q50R2

Q100R2

RR50

RR100

Q25R2

Q50R2

Q100R2

RR50

RR100

1750

2.70

6.10

8.40

5.06

9.83

28.1

63.6

87.6

52.8

102

2000

2.90

6.55

9.02

5.44

10.6

30.2

68.3

94.1

56.7

110

2800

3.21

7.26

10.0

6.02

11.7

33.5

75.7

104

62.8

122

3200

3.33

7.53

10.4

6.25

12.1

34.7

78.6

108

65.2

127

4300

3.62

8.19

11.3

6.80

13.2

37.7

85.4

118

70.9

138

5600

3.90

8.83

12.2

7.33

14.2

40.7

92.1

127

76.4

148

6500

3.99

9.02

12.4

7.49

14.5

41.6

94.1

130

78.1

152

10000

3.67

8.31

11.4

6.90

13.4

38.3

86.7

119

71.9

140

 

 

 

 

 

 

 

 


Photometric calculation formula


Photometric CalculationsTo calculate the incident illuminance at any distance greater than a fixture’s length, use the appropriate formula to the left that matches your measurement units.