What Is This Tool?
This converter transforms illumination measurements from nox, a unit representing very low light levels typical of night-time or near-dark environments, into foot-candles, a widely used unit in lighting practices across North America for specifying luminous flux per square foot.
How to Use This Tool?
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Enter the illumination value in nox you want to convert
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Select nox as the starting unit and foot-candle as the target unit
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Click convert to see the equivalent foot-candle value instantly
Key Features
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Converts illumination values from nox to foot-candles quickly and easily
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Supports units relevant to low-light and architectural, environmental, or stage lighting contexts
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Provides clear conversion with a precise rate for practical application
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Helps bridge specialized astronomical or environmental illuminance with common lighting standards
Examples
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10 Nox converts to 0.00092903 Foot-candle
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100 Nox converts to 0.0092903 Foot-candle
Common Use Cases
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Describing natural night lighting conditions like moonlight or starlight in astronomy
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Designing outdoor lighting with very low background illumination for dark-sky compliance
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Setting illumination standards for offices, retail spaces, and horticultural lighting
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Adjusting light exposure in photography, film, and stage environments
Tips & Best Practices
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Use this tool when working with very low illuminance requiring conversion to common North American lighting units
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Apply conversions to help meet building codes and lighting design criteria
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Be aware this converter links a historical unit to a practical lighting measurement used in many industries
Limitations
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Nox is designed for extremely low light levels and might not suit higher illumination ranges where foot-candle is preferred
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Since foot-candle is a non-SI unit, some rounding variations could occur when used in strictly scientific SI contexts
Frequently Asked Questions
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What does one nox represent?
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One nox is a unit of illuminance for very low light, equal to one millilux or 0.001 lux.
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Why convert nox to foot-candle?
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Converting nox to foot-candle helps express very low light levels using a unit common in North American lighting practices for easier interpretation and compliance.
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Is foot-candle an SI unit?
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No, foot-candle is a non-SI unit measuring luminous flux per square foot commonly used in certain lighting industries.
Key Terminology
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Nox
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A specialized illuminance unit representing very low light levels, equal to one millilux (0.001 lux), used in night-time and near-dark conditions.
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Foot-candle [ft*c, fc]
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A non-SI unit of illuminance equal to one lumen per square foot, commonly applied in North American lighting for measuring luminous flux incident on surfaces.