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HSB160E27-220V HID European Self-Ballasted Mercury Vapor Lamp | AAMSCO Lighting
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Mercury-vapor lamp - Wikipedia
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The Mercury Vapor Lamp - How it works & history
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The Mercury Vapor Lamp - How it works & history
The Mercury Vapor Lamp - How it works & history
Mercury Vapor Lamp - Construction, Working & Types
Gas-discharge lamp - Wikipedia
In 1957, the last gas light was extinguished and replaced with mercury | Gas lamp, Gas lights, Street lamp
Mercury Vapor Lamp : Construction, Working and Its Applications
