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Electrical Wire and Cable

Light Bulb Base and the Light Fixture Socket

How to Identify the Positive and Negative Parts of a Light Bulb: Light Bulb Base and Fixture Socket, Electrical Tips about Light Bulbs and Fixture Wiring.

The Light Bulb Base and the Fixture Socket
Electrical Question: I would like to know more about the base of a light bulb.

This electrical wiring question came from: Noel, a Homeowner from Mexico.

Dave’s Reply:
Thanks for your electrical wiring question Noel.

Light Bulb Base and Fixture Socket

How to Identify the Positive and Negative Parts of a Light Bulb

Great question Noel, this is something most people do not understand.

Electrical Tip about Light Bulbs and Fixture Wiring

The Following will assist you with Light Bulbs and Fixture Wiring:

cfl bulb

recessed lighting

» You Can Avoid Costly Mistakes! «

Here's How to Do It:
Wire It Right with the help of my Illustrated Wiring Book

Great for any Home Wiring Project.

  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handywomen, and Electricians
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.

Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

Electrical Tip

The Safest Way to Test Electrical Devices and Identify Electric Wiring!

The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester, [amazon.com], I use for the detection of Standard Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.

« Magnetic Ballast and Electronic Ballast on the Same Circuit Using Correct Light Bulbs for Your Light Fixture »

FAQs Frequently Asked Questions and Comments

3 Responses to “Light Bulb Base and the Light Fixture Socket”
  1. JOE says:

    I want to wire four incandescent 40 watt bulbs in parallel. I want one end to plug into the wall and the other end to “terminate”. I have four light fixture sockets and want two feet between each bulb.
    Do I understand correctly that I’ll
    1. wire the one end (with the plug) to the first light fixture socket
    2. wire the second with fixture to the first fixture with two wires cut to length, negative to negative and positive to positive.
    3. etc. etc.

    • Dave Rongey says:

      Hi Joe,
      Wiring light fixtures in parallel is the common method, the power source at the beginning, then ending with the last light fixture connection.
      Make sure it is all according to code!

  2. Varun Gogna says:

    Dear Sir/Madam,
    I want to know which types bulb holder used in lighting fixtures in different countries along with wattage?


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