The following data specifies lighting recommendations
to achieve 20 footcandles of illumination per 50 feet of barn length for:
Tiestall or Stanchion Barn Types
| Barn
Layout |
Typical
Width (ft) |
Surface
Area to be Lighted (sq ft) 1 |
Clear
Height (ft) 2 |
Mounting
Height (ft) 3 |
Fixture
Make/Model Number |
Lamp
Wattage (Watts) |
Number
of Fixtures Required per 50 ft |
| 2 row tiestall or
stanchion |
36 |
1,800 |
8 |
3 |
Metalux/VT-248HO-DR-DL |
60 |
22 |
| 8 |
3 |
Metalux/VT-296HO-DR-DL |
110 |
10 |
| 8 |
3 |
Metalux/STN-248HO |
60 |
20 |
| 8 |
3 |
Metalux/STN-296HO |
110 |
9 |
| 10 |
5 |
Metalux/VT-248HO-DR-DL |
60 |
25 |
| 10 |
5 |
Metalux/VT-296HO-DR-DL |
110 |
12 |
| 10 |
5 |
Metalux/STN-248HO |
60 |
22 |
| 10 |
5 |
Metalux/STN-296HO |
110 |
10 |
| 12 |
7 |
Metalux/VT-248HO-DR-DL |
60 |
27 |
| 12 |
7 |
Metalux/VT-296HO-DR-DL |
110 |
13 |
| 12 |
7 |
Metalux/STN-248HO |
60 |
25 |
| 12 |
7 |
Metalux/STN-296HO |
110 |
11 |
|
| 2 row tiestall or
stanchion |
40 |
2,000 |
8 |
3 |
Metalux/VT-248HO-DR-DL |
60 |
24 |
| 8 |
3 |
Metalux/VT-296HO-DR-DL |
110 |
11 |
| 8 |
3 |
Metalux/STN-248HO |
60 |
22 |
| 8 |
3 |
Metalux/STN-296HO |
110 |
10 |
| 10 |
5 |
Metalux/VT-248HO-DR-DL |
60 |
27 |
| 10 |
5 |
Metalux/VT-296HO-DR-DL |
110 |
13 |
| 10 |
5 |
Metalux/STN-248HO |
60 |
24 |
| 10 |
5 |
Metalux/STN-296HO |
110 |
11 |
| 12 |
7 |
Metalux/VT-248HO-DR-DL |
60 |
30 |
| 12 |
7 |
Metalux/VT-296HO-DR-DL |
110 |
14 |
| 12 |
7 |
Metalux/STN-248HO |
60 |
27 |
| 12 |
7 |
Metalux/STN-296HO |
110 |
12 |
|
| 2 row tiestall or
stanchion |
44 |
2,200 |
8 |
3 |
Metalux/VT-248HO-DR-DL |
60 |
26 |
| 8 |
3 |
Metalux/VT-296HO-DR-DL |
110 |
12 |
| 8 |
3 |
Metalux/STN-248HO |
60 |
23 |
| 8 |
3 |
Metalux/STN-296HO |
110 |
11 |
| 10 |
5 |
Metalux/VT-248HO-DR-DL |
60 |
30 |
| 14 |
8 |
Lumark/MPBE-5A-175 |
175 |
13 |
| 16 |
10 |
Lumark/MPBE-5A-250 |
250 |
10 |
| 18 |
12 |
Lumark/MPBE-5A-250 |
250 |
10 |
|
| 4 row head to head |
99 |
3,950 |
10 |
4 |
Lumark/HPBE-5A-150 |
150 |
10 |
| 10 |
4 |
Lumark/MPBE-5A-175 |
175 |
12 |
| 12 |
6 |
Lumark/HPBE-5A-150 |
150 |
11 |
| 12 |
6 |
Lumark/MPBE-5A-175 |
175 |
13 |
| 14 |
8 |
Lumark/HPBE-5A-150 |
150 |
11 |
| 14 |
8 |
Lumark/MPBE-5A-175 |
175 |
14 |
| 16 |
10 |
Lumark/MPBE-5A-250 |
250 |
10 |
| 18 |
12 |
Lumark/MPBE-5A-250 |
250 |
11 |
|
| 6 row head to head |
115 |
4,750 |
10 |
4 |
Lumark/HPBE-5A-150 |
150 |
12 |
| 10 |
4 |
Lumark/MPBE-5A-175 |
175 |
14 |
| 12 |
6 |
Lumark/HPBE-5A-150 |
150 |
13 |
| 12 |
6 |
Lumark/MPBE-5A-175 |
175 |
15 |
| 14 |
8 |
Lumark/HPBE-5A-150 |
150 |
14 |
| 14 |
8 |
Lumark/MPBE-5A-175 |
175 |
16 |
| 16 |
10 |
Lumark/MPBE-5A-250 |
250 |
11 |
| 18 |
12 |
Lumark/MPBE-5A-250 |
250 |
12 |
- Note 1: Cow
level has been defined as 4 feet above the surface the cow stands on. The surface
area to be illuminated does not include 20 foot wide delivery driveway area for 4 and 6
row drive-through barns.
- Note 2: Clear
height is the distance from the cow-standing surface to the bottom chord of the building
truss or the bottom of a fixture support arm.
- Note 3: Mounting
height is defined as the distance above the cow level (4 ft) to the bottom of the light
fixture.
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