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SOX Sodium, LPS or low pressure sodium lamp warming up. The lamp gradually turns from red to orange as the neon discharge warms the sodium metal up Stock Photo - Alamy
Sodium Vapour Lamp
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Parts of the high pressure sodium vapor lamp. Source: Manual INDAL... | Download Scientific Diagram
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Sodium vapor light bulb, gas-discharge lamp icon, vector linear illustration in doodle sketch hand drawn style 10587015 Vector Art at Vecteezy
Sodium-vapor lamp - Wikipedia
Sodium-vapor lamp - Wikipedia
The Sodium Lamp - How it works and history
Sodium-vapor lamp - Wikipedia
