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Table 7
LFTF Lighting Test Results: F42 T-10 Fixtures
| Lamp
Ballast |
F42T10
M |
F42T10
E |
F42T10
E |
F42T10
M |
F42T10
M |
F42T10
E |
F42T10
E |
| Troffer
Diffuser |
Std
Pris |
Par
Open |
Std
Pris |
Par-Refl
Open |
Std-Refl
Pris |
Par-Refl
Open |
Std-Refl
Pris |
| Power (Watts)
Day (9 AM - 5 PM) Night (10 PM - 5 AM) Avg (24-hr) |
89.8 90.1 89.9 |
149.8 149.6 149.5 |
125.9 125.1 125.4 |
180.4 180.8 180.6 |
91.9 92.3 92.1 |
151.2 148.2 149.3 |
131.1 130.5 130.7 |
| Illuminance (Decalux)
Day (9 AM - 5 PM) Night (10 PM - 5 AM) Avg (24-hr) |
64.2 34.8 48.6 |
148.6 68.2 98.8 |
115.7 58.0 80.3 |
102.4 79.3 90.2 |
66.8 34.1 48.2 |
123.0 70.3 90.4 |
149.6 64.5 97.3 |
| Efficacy (Decalux/Watt)
Day (9 AM - 5 PM) Night (10 PM - 5 AM) Avg (24-hr) |
88.3 47.7 66.8 |
122.5 56.3 81.6 |
113.5 57.3 79.1 |
70.1 54.1 61.7 |
89.8 45.7 64.6 |
100.5 58.6 74.8 |
141.0 61.1 92.0 |
| Power Quality (Power Factor)
Min Max Avg |
0.99 1.00 1.00 |
0.99 1.01 1.00 |
0.99 1.01 1.00 |
0.98 1.00 0.99 |
0.99 1.00 0.99 |
0.99 1.01 1.00 |
0.99 1.01 1.00 |
| Temperature oC
Bulb Ballast Fixture |
45.9 47.8 33.6 |
42.8 41.4 28.2 |
47.4 47.4 24.5 |
41.0 52.0 24.1 |
43.9 45.6 27.8 |
31.7 40.8 27.4 |
40.0 45.1 25.1 |
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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