1000Watt High pressure sodium mog base lamp
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The Construction and Applications of Sodium Vapour Lamps
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a) yellow light is scattered more by the fog particles
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Sodium-vapor lamp - Wikipedia
The Sodium Lamp - How it works and history
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sodium-vapour lamp | instrument | Britannica
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The Sodium Lamp - How it works and history
High pressure sodium
The Sodium Lamp - How it works and history
Sodium-vapor lamp - Wikipedia
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