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Table 6
LFTF Lighting Test Results: F32 T-8 Fixtures

Lamp

Ballast

F32T8

ET

F32T8

ET

F32T8

ET

F32T8

ED10

F32T8

ED

F32T8

ED

F32T8

ED

F32T8

E

F32T8

E

Troffer

Diffuser

Std

Pris

Par-Refl

Open

Std-Refl

Pris

Par

Open

Std

Pris

Par-Refl

Open

Std-Refl

Pris

Par

Open

Std

Pris

Power (Watts)

Day (9 AM - 5 PM)

Night (10 PM - 5 AM)

Avg (24-hr)



109.8

109.4

109.5



108.8

107.7

108.0



115.1

114.9

115.0



71.5

106.3

91.5



78.2

110.3

97.5



66.1

109.3

90.1



70.5

104.1

89.9



150.6

151.5

151.0



152.0

152.0

151.8

Illuminance (Decalux)

Day (9 AM - 5 PM)

Night (10 PM - 5 AM)

Avg (24-hr)



70.5

44.9

56.1



80.7

49.6

63.7



79.0

50.3

62.9



70.2

42.7

53.3



89.0

45.9

62.1



74.9

40.4

53.1



76.0

42.7

55.4



116.3

74.4

90.8



88.1

71.4

79.3

Efficacy (Decalux/Watt)

Day (9 AM - 5 PM)

Night (10 PM - 5 AM)

Avg (24-hr)



79.3

50.7

63.2



91.6

56.8

72.8



84.8

54.0

67.6



121.4

49.6

71.9



140.6

51.4

78.7



139.8

45.6

72.8



133.0

50.7

76.1



95.4

60.6

74.3



71.6

58.0

64.5

Power Quality (Power Factor)

Min

Max

Avg



0.99

1.00

0.99



0.98

1.00

0.99



0.98

1.01

0.99



0.94

0.98

0.96



0.99

1.01

1.00



0.92

0.99

0.96



0.93

0.99

0.97



0.98

1.00

0.99



0.98

1.00

0.99

Temperature oC

Bulb

Ballast

Fixture



44.4

45.5

23.2



45.9

45.2

22.7



39.5

46.4

21.9



31.7

41.5

26.7



42.3

38.4

22.7



38.6

42.3

22.7



33.5

43.8

26.0



46.4

39.3

28.1



48.1

40.3

23.8

1 Magnetic Ballast 3 Magnetic Dimming Ballast 5 Standard Troffer 7 Standard Troffer w/Reflector 9 Tandem-wired 4-lamp Ballast

2 Electronic Ballast 4 Open Parabolic Troffer 6 Parabolic Troffer w/Reflector 8 Prismatic Diffuser 10 Electronic Dimming Ballast



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