What Is This Tool?
This tool converts luminous intensity values from the historical German candle unit to the British candle unit, both of which were used before the modern candela standard. It helps interpret and compare old photometric data for research, restoration, and documentation.
How to Use This Tool?
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Enter the luminous intensity value in candle (German)
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Select candle (German) as the source unit
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Choose candle (UK) as the target unit
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Click convert to get the equivalent value in candle (UK)
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Use the result to analyze or compare historic lighting measurements
Key Features
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Converts luminous intensity from candle (German) to candle (UK)
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Supports historical and archival photometric data interpretation
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Browser-based and simple to use without installation
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Provides examples of conversion for reference
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Facilitates restoration and comparative lighting analysis
Examples
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5 candle (German) equals approximately 5.05 candle (UK)
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10 candle (German) equals approximately 10.1 candle (UK)
Common Use Cases
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Interpreting 19th and early 20th-century German lighting specifications
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Converting British historical lighting data for comparison
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Restoring period lighting in museums and historical settings
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Documenting and analyzing archival photometric records
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Comparing luminous intensity values from German and British standards
Tips & Best Practices
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Always consider the historical context when using these obsolete units
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Use this converter to ensure consistency across German and British data
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Refer to conversion examples to validate your results
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Understand limitations due to differences in original measurement methods
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Use modern candela units for current photometric applications
Limitations
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Both candle units are obsolete and replaced by the candela
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Historical measurement variability may affect precision
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Different flame standards cause minor inconsistencies
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Conversions reflect historical context, not modern exactness
Frequently Asked Questions
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What is the candle (German) unit?
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The candle (German) is an old German luminous intensity unit based on a standardized flame, used before the candela was established.
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Why convert candle (German) to candle (UK)?
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Converting between these units helps compare historical lighting data from German and British sources accurately.
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Is this conversion still used today?
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No, both units are obsolete and mainly relevant for historical, archival, or restoration purposes.
Key Terminology
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Candle (German)
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An obsolete German luminous intensity unit originally based on a standardized flame used before the candela.
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Candle (UK)
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An obsolete British luminous intensity unit defined by the light from a standardised candle prior to candela adoption.
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Candela
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The current SI unit for luminous intensity, replacing older candle units.