How to Change a 2 Pin Halogen Light Bulb 

Changing a 2 pin halogen light bulb is not as daunting as it may seem.

This blog post will provide step-by-step instructions on how to change a 2 pin halogen light bulb safely and efficiently. Plus, we will share some tips on making the process easier.


So, whether you are a seasoned pro or a first-time changer, read on for all you need to know about changing a 2 pin halogen light bulb! When a 2 pin halogen light bulb needs to be replaced, it can be confusing to know how to do it.

First, make sure the power to the light fixture is turned off. Then unscrew the old bulb and replace it with a new one. Be careful not to touch the glass of the new bulb with your fingers, as it will be hot. Read on to know more information!

What is A 2 Pin Halogen Bulb?

A 2 Pin Halogen Bulb is a halogen lamp that uses an incandescent light bulb. The lamp has two metal pins on one end to connect to the fixture.

A similar bulb with three pins is a three-pin halogen bulb, whereas a five-pin halogen light is not very common in homes. To understand what a 2 pin halogen bulb is, it is important to know the definition of a Halogen Bulb and Dimming.

The heat produced by an incandescent light bulb allows the metal filament inside the bulb to glow and produce light. However, these bulbs are very inefficient, and they waste a lot of energy as heat.

A halogen bulb has several layers of glass, which allows it to perform better than an incandescent light bulb in many ways. These include providing more light, being energy efficient, and lasting for a very long time.

Different Types of Halogen Bulb

Many types of Halogen Bulbs vary in size and wattage. Here we have a brief description of these Halogens.

1. HB1: This bulb generally fits into the headlamps, fog lights, and parking lights. The wattage ranges from 35W to 55W, depending on your car’s requirements.

It measures about 40mm in diameter and has two pins, as you can see from the picture above.

2. HB3: This bulb is similar to the HB1 but has an additional pin, making it a three-pin halogen bulb.

It can fit into any position of your car where you want more light, such as the DRLs (daytime running lights), fog lights, parking lights, or headlights. These are used mainly by European cars.


3. G4: G4 halogen lamps are used in various appliances and equipment, including torchieres, architectural lighting, magnifiers, illuminated signage, and hand tools.

4. GY8: GY8 halogen lamps are used in theatre lighting, automotive headlamps, aviation interior lighting, and studio task lights.

5. G9: G9 halogen lamps are used in appliances and equipment, such as barcode scanners, headsets, magnifiers, microscopes, photographic lighting, sign illumination.

6. GY7: GY7 halogen lamps are used in theatrical lighting, automotive headlamps for fog lights, driving lights, and studio task lights.

Six Factors to Consider When Choosing 2-pin Led Halogen Bulb

1. Light Output:

Halogen bulbs produce a softer light than LED or CFL, but they have a better color rendering index. In other words, the halogen bulb provides a good illumination at home.

2. Lifespan:

The standard lifespan of a halogen bulb is around 750 hours, while that of an LED is 25000+ hours, and CFL is 8000 hours.

3. Power Consumption:

The power consumption of a halogen bulb is about 35W, while that of an LED is 15W and CFL is 20W. Thus, the average halogen bulb has more than double the running cost with respect to LED or CFL.


Furthermore, despite its low power consumption, CFL requires high voltages, which cause a significant voltage drop that brings about light flickering.

4. Color Temperature:

The Halogen bulb has a high color temperature (around 2400K) which gives a warm and cozy effect to your room, while the LED has a lower color temperature because it emits white light without any hint of yellow.

5. Size & Shape:

Halogen bulbs are available in all shapes and sizes. The most common shape is E27, and it can fit into any standard lamp or light fixture; they come in a variety of finishes such as gold, silver, and black.

LED bulbs come only in the shape of a “spotlight” because their lens design focuses the light downwards to maximize the lighting coverage with the least light wastage.

6. Price:

Due to the high cost of LEDs, halogen bulbs are cheaper than LED and CFL by about 20%. However, despite its low price, some concerns about its brightness may not be as bright as some would like.

This is because the light produced by a halogen bulb spreads in all directions; hence, we can’t get enough light in a given space with only one bulb.

Step by Step Process: How to Change a 2 Pin Halogen Light Bulb 

Step 1: Turn off the Power

Turn off the power to the light. Next, unscrew the screw holding your wall switch and completely remove it from the socket.

Step 2: Remove Protective Covers

Remove the protective covers on the light base, unscrewing any screws holding them in place. Be careful not to undo the second screw if it fastens a cover to an electrical wire.


Step 3: Unscrew Bulb Cover

Unscrew the protective bulb cover, keeping your hands firmly around the bulb’s base. Then, slowly pull it off, careful not to touch the bulb itself.

Step 4: Loosen Bulb

Loosen, but do not remove, the screw holding the wiring for your light. Carefully twist and pull out your old halogen bulb from its socket. Insert your new halogen bulb into the socket.

Step 5: Re-tighten Screw

Place your hand firmly on top of the bulb, and re-tighten the screw holding the wiring for your light. Next, replace the protective bulb cover, and reattach any screws removed to expose it. Also, return your wall switch to its original position.

Step 6: Test Your New Bulb

Turn your power back on, and check to make sure you’ve changed the bulb correctly. If it still doesn’t work after restarting power, don’t be afraid to turn it off again, replace the protective covers hidden by the wall switch, and consult a professional electrician.

Precautions and Safety Measures When Changing Halogen Bulbs

1. Turn the power off to the light fitting at the circuit breaker before removing a halogen bulb from a lighting fixture.

2. Make sure that no one will touch a lead or contact point when removing a halogen bulb. If a lead does happen to come into contact with a water source, there is a possibility that the person touching it may receive an electric shock.

In addition, the halogen bulb could explode and cause serious injury or damage to property.

3. After turning off the circuit breaker for the light fitting, allow the bulb to cool before removing it from its socket.


Never attempt to change a bulb when it is immediately next to or in contact with another electrical part of the light fitting.

Otherwise, there is a risk that the other parts will become damaged. Likewise, never operate lights without bulbs as this can damage the light fittings.

4. Do not change more than two halogen bulbs at one time unless they are both of the same wattage and type.

5. Make sure that everyone is clear of the light fitting before swapping a bulb, and ensure that nothing will be in danger if it falls.

6. If you experience difficulties changing a bulb, or feel that it’s taking too long and is rather difficult, don’t hesitate to contact an electrician as they will be able to change your bulb much quicker and more efficiently.

7. Although halogen bulbs can get very hot during use, do not attempt to touch them immediately after turning off the light fitting as they are still very hot even after the halogen has cooled.

What are Two Prong Light Bulbs Called?

A halogen light bulb is one of several types of gas-discharge lamp, a kind of electrical lamp that produces light from an electric current passing through a gas.

A halogen lamp contains a tungsten filament sealed in an incandescent light bulb, filled with a gas such as iodine or bromine. The gas enables the current to pass through it more easily, saving energy.

This type of bulb also contains halogen, a compound that assists in re-establishing the filament after the heat has vaporized it.

There are several different types of 2 pin light bulbs, but this guide has focused on how to change a 2 pin halogen light bulb.

Halogen lamps can last up to 2 years if they are switched on and off regularly but may last longer if they are not switched on and off as much.


If you’re looking to change the light bulb in your 2-pin halogen fixture, this article is for you. Follow the steps mentioned here to replace a non-dimmable halogen bulb with a new one.

First, turn off the power by flipping the breaker switch or tripping the circuit breaker at the panel box. Next, use an insulated screwdriver and unscrew both screws from the rear of the cover plate.

Lift on a cover plate and set it aside before touching any wires inside the fixture. Unscrew old lightbulbs from the socket using pliers because they can get hot enough to cause burns if handled barehanded after running for a while.

We hope this blog post helped give you instructions on how to change a 2 pin halogen light bulb. If you have any questions or want to know more, please comment below!

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