What Is This Tool?
This converter transforms illuminance values expressed in lumen per square centimeter, a precise photometric measure, into an informal unit called flame, which represents the light emitted by an open combustion source. It is designed to help users translate technical data into qualitative lighting descriptions.
How to Use This Tool?
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Enter the illuminance value in lumen per square centimeter
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Select the target unit as flame
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Click convert to obtain the approximate flame equivalent
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Use the result for qualitative comparisons or informal descriptions
Key Features
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Conversion between lumen/square centimeter and flame units
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Supports illumination measurements for small-scale light intensity
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Provides an informal scale useful for non-technical communication
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Browser-based and easy to use without specialized equipment
Examples
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2 lumen/square centimeter equals approximately 464.5152 flame
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0.5 lumen/square centimeter equals approximately 116.1288 flame
Common Use Cases
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Specifying brightness of small high-power LEDs
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Measuring illuminance on microscope slides in labs
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Providing informal light level descriptions in conservation reports
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Communicating rough illumination estimates in firefighting or fieldwork
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Comparing light levels in outdoor archaeology and anthropology without instruments
Tips & Best Practices
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Use lumen/square centimeter for precise photometric measurements
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Employ flame units for qualitative, informal lighting descriptions
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Be mindful that flame is approximate and context-dependent
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Choose the unit fitting your audience—technical or general
Limitations
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Flame is not a standardized scientific unit of illumination
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Variable flame size and environment affect measurement accuracy
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Suitable only for rough, qualitative light comparisons
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Not appropriate for exact or rigorous illuminance quantification
Frequently Asked Questions
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What does lumen/square centimeter measure?
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It quantifies the luminous flux falling on one square centimeter of surface, representing perceived brightness weighted by the human eye's photopic response.
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Is flame a scientific unit?
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No, flame is an informal descriptor for light emitted by open combustion sources and lacks standardization.
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When should I use the flame unit?
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Use flame for qualitative light descriptions when precise measurement is unnecessary or when communicating with non-technical audiences.
Key Terminology
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Lumen/square centimeter
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A photometric measure of illuminance representing luminous flux per square centimeter, indicating perceived surface brightness.
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Flame
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An informal unit describing the light from an open combustion source, used qualitatively rather than scientifically.
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Illuminance
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The amount of luminous flux incident per unit area, which lumen/square centimeter quantifies precisely.