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Table 5
LFTF Lighting Test Results: F32 T-8 Fixtures
| Lamp Ballast |
F32T8
M |
F32T8
M |
F32T8
E |
F32T8
E |
F32T8
M |
F32T8
M |
F32T8
E |
F32T8
E |
F32T8
ET9 |
| Troffer
Diffuser |
Par
Open |
Std
Pris |
Par
Open |
Std
Pris |
Par-Refl
Open |
Std-Refl
Pris |
Par-Refl
Open |
Std-Refl
Pris |
Par
Open |
| Power (Watts)
Day (9 AM - 5 PM) Night (10 PM - 5 AM) Avg (24-hr) |
132.2 131.6 131.9 |
127.7 128.2 127.9 |
123.1 122.9 122.9 |
119.6 119.2 119.3 |
130.9 130.3 130.5 |
131.6 132.2 132.0 |
123.3 123.2 123.3 |
119.2 118.7 118.9 |
110.2 109.3 109.7 |
| Illuminance (Decalux)
Day (9 AM - 5 PM) Night (10 PM - 5 AM) Avg (24-hr) |
80.0 50.6 63.9 |
85.4 50.0 65.2 |
85.5 51.9 65.5 |
89.2 50.3 66.7 |
82.9 58.3 69.1 |
81.7 55.2 67.5 |
88.2 58.6 71.1 |
122.9 54.8 81.1 |
82.1 51.1 64.3 |
| Efficacy (Decalux/Watt)
Day (9 AM - 5 PM) Night (10 PM - 5 AM) Avg (24-hr) |
74.7 47.5 59.8 |
82.6 48.2 63.0 |
85.8 52.2 65.8 |
92.1 52.1 69.0 |
78.2 55.3 65.4 |
76.6 51.5 63.2 |
88.4 58.7 71.3 |
127.3 57.0 84.3 |
92.0 57.7 72.4 |
| Power Quality (Power Factor)
Min Max Avg |
0.91 0.94 0.93 |
0.92 0.95 0.93 |
0.99 1.00 0.99 |
0.97 0.99 0.98 |
0.92 0.95 0.93 |
0.92 0.94 0.93 |
0.98 1.00 0.99 |
0.99 1.01 1.00 |
0.98 1.00 0.99 |
| Temperature oC
Bulb Ballast Fixture |
35.7 43.3 27.1 |
45.8 47.3 23.2 |
33.5 36.2 25.9 |
42.3 43.4 24.2 |
40.8 45.3 28.9 |
40.5 47.5 23.1 |
37.7 36.0 25.9 |
38.0 41.3 25.1 |
37.7 42.2 28.1 |
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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