
Direct – SG, SH
Lighting Systems
Softly glowing, |
| Available in one and |
lighting provides generous |
| two lamp versions. |
illumination for task |
| Silhouette Direct |
environments. |
| functions well in |
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| work spaces, |
| SH | retail stores |
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| or libraries. |
SG 1-Lamp T5 Luminous Direct
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| 1 |
| 3 |
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4 | 2 | 4 1/4" |
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| 5 |
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| 6 |
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| 2 3/4" |
For complete specifications see individual specification sheets.
1.Housing: Extruded aluminum.
2.Lamping: One T5 (28 or 54 watt as speci- fied) fluorescent lamp. Provided by others.
3.Reflector:
4.Shielding:
5.Diffuser: Translucent acrylic diffuser.
6.Louver: Straight blade louver finished to match housing.
Luminaire Lengths:
94 3/4".
Run End Detail
180˚ | 175˚ | 165˚ | 155˚ | 145˚ | 135˚ | Coefficients of |
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| 125˚ | Utilization |
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| 115˚ |
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| 105˚ |
| 0 | 70 | 50 | 30 |
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| 95˚ |
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| 90˚ |
| 1 | 58 | 55 | 53 |
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| 85˚ | Ratio | ||||
250 |
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| 3 | 50 | 45 | 41 | ||
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125 |
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| 2 | 54 | 50 | 46 |
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500 |
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| 65˚ | Cavity | 4 | 46 | 40 | 36 |
375 |
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| 5 | 43 | 36 | 32 | |
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| 0˚ | 90˚ |
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| 6 | 40 | 33 | 29 | |
0˚ | 5˚ | 15˚ | 25˚ | 35˚ | 55˚ | Room | ||||
45˚ | 8 | 34 | 28 | 23 | ||||||
625 |
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| 7 | 37 | 30 | 26 |
55% efficiency |
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| 9 | 32 | 25 | 21 | ||||
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| 10 | 29 | 22 | 18 | |||||
1 lamp F28T5 |
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| 80% | Effective Ceiling |
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Report No. |
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83% Direct |
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| Cavity Reflectance | ||||||
17% Indirect |
| 20% | Floor Cavity |
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| Reflectance |
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| 2,000 |
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| 20 | 30 | 50 | 70 | 100 |
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FEET | 1,000 |
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SQUARE |
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500 |
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IN | 400 |
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AREA |
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ROOM | 200 |
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| 1 | 2 | 3 | 4 | 5 | 7 | 10 |
| 20 | 30 | 40 50 | 70 |
| 100 | 200 | ||||||||||||||
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| NUMBER OF FIXTURES REQUIRED |
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| How to Specify |
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| Finish |
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| Series SG |
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| White |
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| Aluminum |
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| 28 watt |
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| 54 watt |
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Please refer to the flap at the back of the brochure for complete ordering instructions.
1.Find room area on vertical axis.
2.Move across chart to footcandle curve.
3.Move down to hori- zontal axis and read number of luminaires required.
SH 2-Lamp T5 Luminous Direct
SH Joiner
1
3
2
4
5
6
5 7/16"
5 3/4"
1. | Housing: Extruded |
| aluminum. |
| end plate mechani- |
| cally attached with no |
| exposed fasteners. |
2. | Lamping: Two T5 (28 |
| or 54 watt as speci- |
| fied) fluorescent |
| lamps. Provided by |
| others. |
3. | Reflector: |
4.Shielding:
5.Diffuser: Translucent acrylic diffuser.
6.Louver: Straight blade louver finished to match housing.
Luminaire Lengths:
94 3/4".
For complete specifications see individual specification sheets.
specular aluminum |
reflector. |
SG
SG Joiner
180˚ | 175˚ | 165˚ | 155˚ | 145˚ | 135˚ | Coefficients of |
| |||
|
|
|
|
| 125˚ | Utilization |
|
| ||
|
|
|
|
| 115˚ |
|
| % Wall Reflectance | ||
|
|
|
|
| 105˚ |
|
| 70 | 50 | 30 |
250 |
|
|
|
| 95˚ |
| 0 | 63 | 63 | 63 |
|
|
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|
| |||||
0 |
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| 90˚ |
| 1 | 58 | 56 | 54 |
250 |
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| 85˚ | Ratio | 3 | 50 | 45 | 42 |
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| 2 | 54 | 50 | 47 | |
500 |
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| 75˚ |
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| Cavity | 4 | 46 | 41 | 37 | |
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| 65˚ | |||||
750 |
| 0º | 90º |
| 5 | 43 | 37 | 33 | ||
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1000 |
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| 55˚ | Room | 6 | 40 | 34 | 30 |
0˚ | 5˚ | 15˚ | 25˚ | 35˚ | 45˚ | 8 | 35 | 28 | 24 | |
1250 |
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| 7 | 37 | 31 | 27 |
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54.3% efficiency |
|
| 9 | 32 | 26 | 22 | ||||
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| 10 | 29 | 23 | 19 | |||||
2 lamp F28T5 |
|
|
| |||||||
|
| 80% | Effective Ceiling |
| ||||||
Report No. |
| |||||||||
85% Direct |
|
|
| Cavity Reflectance | ||||||
15% Indirect |
|
| 20% | Floor Cavity |
| |||||
|
|
|
|
|
|
| Reflectance |
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| 2,000 |
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| FOOTCANDLE |
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| 20 |
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| 30 |
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| 50 70 | 100 |
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FEET | 1,000 |
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700 |
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SQUARE |
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500 |
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IN | 400 |
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AREA |
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ROOM | 200 |
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| 1 | 2 | 3 | 4 | 5 | 7 | 10 |
| 20 | 30 | 40 50 | 70 |
| 100 | 200 | ||||||||||||||
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| NUMBER OF FIXTURES REQUIRED |
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| How to Specify |
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| Finish |
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| Series SH |
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| White |
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| Aluminum |
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| 28 watt |
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| 54 watt |
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Please refer to the flap at the back of the brochure for complete ordering instructions.
1.Find room area on vertical axis.
2.Move across chart to footcandle curve.
3. Move down to hori- zontal axis and read number of luminaires required.
13