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Can I Use an LED Bulb in an Incandescent Fixture?

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Are you new to LED bulbs? You might have just recently started using one and have an incandescent fixture in your home. We all know you need to replace the whole fixture if it gets broken. However, you’re just simply replacing the bulb with an LED one. Which makes you wonder, can I use an LED bulb in an incandescent fixture?

Can I Use an LED Bulb in an Incandescent Fixture? 

Yes, you can use LEDs in most light fixtures. Just make sure that it’s not enclosed, air-tight, or an old-style dimmer system as it can shorten the lifespan of LEDs. You may also need to consider additional things if your bulbs require a voltage level other than the common 230V. 

There are several considerations you must take to mind before you think about installing LED bulbs in an incandescent fixture. These are:

  • If the fixture is dimmable and the LED bulb is not, the LED bulb may flicker or not come on. In that case, it’s better to replace the fixture or find a dimmable LED bulb. 
  • Using an LED bulb in an enclosed fixture may cause it to overheat. Although LED bulbs generate less heat, they’re also more sensitive to overheating. Some LED bulbs can handle enclosed fixtures so make sure you check before installing one.
  • You may find LED bulbs a bit larger even though the mount is the same. So, you need to carefully measure or ask for professional assistance to find an LED bulb that fits.
  • Some fixtures or circuit runs a small amount of current through the bulb at all times. This might cause an LED bulb to stay lit so you have to watch out for those.
Incandescent fixture

If you don’t experience these problems, you can easily install an LED bulb in an incandescent fixture with little to no problem. 

What Happens if You Put an LED Bulb in an Enclosed Fixture?

As mentioned above, placing an LED bulb in an enclosed fixture may cause it to overheat. It may cause damage to the light bulb and fixture. You should be careful installing LED bulbs in an enclosed fixture as even a little heat can shorten the lifespan of the LED bulb. 

The enclosed fixture encases LED bulbs in a way they don’t enough airflow or ventilation. You probably know by now that LEDs don’t like heat. The design of enclosed fixtures hinders LEDs from functioning properly and may even cause damage. 

Can Philips LED Bulbs be Used in Enclosed Fixtures?

Depending on the type of Philips LED bulb you may or may not. Usually, Philips LED bulbs aren’t suitable for enclosed fixtures. It may even void your warranty if you use it in enclosed light fixtures. 

You should ask Philips or read the product label before trying to do so. You may end up with a damaged internal circuit.

Can You Use LED and Incandescent Bulbs in the Same Fixture?

It might be tempting to replace just one or two bulbs to save cost, you should never do it. Using LED and incandescent bulbs in the same fixture causes poor performance. 

If you use LED and incandescent bulbs in the same fixture, your incandescent light bulb will draw more power. This causes LED to allocate less power and prompt it to flicker

You get no advantages in using both LED and incandescent bulbs in the same fixture so don’t bother doing it. If you change one, you better change all of them. 

Can I Put LED Bulbs in Halogen Fixture?

If your LED bulb fits and they’re both of the same voltage, you should have no problems putting LED bulbs in halogen fixtures. You should take note of the fitting of the bulb base first. Common bulb bases mostly use either E27 screw type or GU10 pin type which LED bulbs also have.

The wattage of your LED bulb also doesn’t have to be the same as your halogen lamp or other older bulbs. LEDs at 8.5 watts shine the same way as halogen lamps powered at 30 watts of energy. 

Instead of comparing watts, which measures power consumption, you should check the number of lumens a light bulb has. Lumen measures the light output of a light bulb. You should replace your old light bulb with the same brightness equivalent to your LED.

LED bulb in an incandescent fixture

Can I Use LED Bulbs in Any Fixture?

Light fixtures have a rating for their particular size bulbs you should use in that fixture. As long as the mounting base has the same size and type as your LED bulb, you can use it with your existing fixture. 

You should never use light bulbs that have a higher wattage from what is recommended for the fixture. Don’t forget watts measure electric power or you might encounter overloading. LEDs have a much lower wattage than incandescent bulbs so you won’t encounter this problem most of the time. 

Related Questions

Do LEDs Need Special Fixture?

In most cases, you can use your old fixture and replace them with LED bulbs. 

However, you might find yourself in these situations that we certainly won’t recommend using LED bulbs. For example, old fixtures that have a dimming feature won’t be compatible with most LED bulbs

Basically, any fixture that isn’t conducive for airflow is not good for LED bulbs. LEDs need to have space where they can easily dissipate heat away. That’s why you need to check if you have a cool condition fixture before installing your LED bulbs. 

How to Determine Whether Fixture is Suitable for LED?

Any fixture that promotes air ventilation, has heat dissipation properties, and open from all sides makes them suitable for LED light installation. 

However, if you have an enclosed rated LED bulb, it opens up a lot of fixture options. It usually has a large aluminum heat sink for better and faster heat dissipation. 


You can use an LED bulb in an incandescent fixture and in almost any type of fixture. Just make sure you don’t use LED bulbs in enclosed fixtures or fixtures that don’t have sufficient airflow or you’ll experience overheating.