LightingAll electrical components supplied by Starrco are UL listed. The standard components are designed for use with a 120/240-volt single-phase system operating at 60 Hz.
(Components for three phase and other special requirements are available as special orders).
The standard light fixture is a 2' x 4' recessed fluorescent troffer designed for 4-32 watt bulbs. Total watts per light fixture are 128.
Determining the amount of lighting needed for a particular application can be a complex process involving several different formulas. Listed below are some simplified guidelines to help figure the quantity of lights needed. (Starrco standard lighting design is based upon 70-foot candles):
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Recommended Foot Candles of Lighting |
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Foot Candles |
30FC |
50FC |
70FC |
100FC |
150FC |
| Rooms |
Lavatories Conference room Cafeteria Corridors |
Classroom Stores Reading
Rough assembly Deskwork |
Office area Proof reading General assembly Inspection testing |
Drafting General assembly Testing inspection Counter display |
Fine drafting Display lighting Fine assembly Testing Prolonged seeing |
Quantity of Light @ 50FC = Square foot of room x 1.5 watts / 160 watts Quantity of Light @ 70FC= Square foot of room x 2.0 watts / 160 watts Quantity of Lights @ 100FC = Square foot of room x 3.0 watts / 160 watts
Note: to reduce the quantity of lights needed for an entire area, concentrate the lighting in the areas where the actual work is being performed. Limit the lighting in common or non-critical areas. This not only reduces the number of lights in an area, but will also reduce cooling requirements and maintenance costs.
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