Sulfur lamp
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Luminous efficacy
Photopic vision
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Architectural lighting design
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Photosynthetically active radiation
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Xenon arc lamp
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Hydrargyrum medium-arc iodide lamp
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Metal-halide lamp
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Compact fluorescent lamp
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Lumen (unit)
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Mercury-vapor lamp
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High-intensity discharge lamp
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Street light
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Sodium-vapor lamp
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Luminous flux
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Headlamp
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Electrical efficiency
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Overhead projector
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Neon lamp
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Consumer Electronics Show
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Flashlight
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Lighting
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Active-matrix liquid-crystal display
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Fluorescent lamp
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Metrology
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Halogen lamp
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Incandescent light bulb
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Candle
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Caesium standard
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Sunlight
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Samarium
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SI derived unit
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SI base unit
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International System of Units
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Sun
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Physical constant
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Measurement
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Light
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Electric light
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Color temperature
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Candela
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International Bureau of Weights and Measures
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Arcturus
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Luminous coefficient
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Luminous efficiency
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Lighting efficiency
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