How To Test A Mercury Vapor Bulb

A mercury vapor bulb is a type of electrical light bulb. It is filled with mercury vapor. When the bulb is turned on, the mercury vapor is heated and it emits light.

How To Test A Mercury Vapor Bulb

To test a mercury vapor bulb, one can use a multimeter to measure the amount of voltage across the bulb. A working mercury vapor bulb will have a voltage of around 115 volts.

The required tools for this project are a multimeter and a mercury vapor bulb.

  • Test the light for continuity with a multimeter
  • Check the light for any damage
  • If the light is damaged, do not use it. remove the bulb from its packaging. insert the bulb into

-Check the wattage of the bulb to ensure it is the correct replacement -Check the Connection Type to ensure it is compatible -Inspect the condition of the glass and metal for any damage that may have occurred during shipping or handling -Ensure that the pins are straight and undamaged -Remove the old bulb from the fixture

Frequently Asked Questions

Are Mercury Vapor Lights Banned?

Yes, mercury vapor lights have been banned in many places because of the health risks associated with their use.

Are Mercury Vapor Bulbs Safe?

There is a lot of debate about the safety of mercury vapor bulbs. Some people claim that they are very dangerous because of the mercury they contain, while others argue that they are perfectly safe as long as you take precautions when using them. In my opinion, it is probably best to err on the side of caution and avoid using mercury vapor bulbs if you can.

Do Mercury Vapor Bulbs Burn Out?

Yes, mercury vapor bulbs do burn out. They have a lifespan of about 3000 hours.


Testing a mercury vapor bulb is easy. Simply use a voltmeter to measure the voltage across the terminals of the bulb.

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