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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