do fluorescent lights get hot

Do Fluorescent Lights Get Hot?

Fluorescent lights are well-known for their bright illumination and energy efficiency, making them a popular choice in offices and commercial buildings. But do these lights emit heat? Many ask this question as they try to manage their internal temperatures while keeping their monthly utility bills low. In this blog post, we’ll take an in-depth look at fluorescent lights — from how they work to whether or not they get hot. Read on to discover all you need to know about our beloved fluorescent lighting!

What Are Fluorescent Lights?

Fluorescent lights are a trendy choice since they are a cost-efficient, high-quality form of illumination. These powerful, bright lights feature a tube filled with a gas that produces light when an electric current passes through it, plus a special phosphor coating that amplifies the amount of visible light created.

Fluorescent lights come in all shapes and sizes, making them suitable for any space — from an office building to your home.

Although slightly more expensive than traditional incandescent light bulbs, fluorescent lighting offers many advantages, including utilizing less energy resulting in cost savings on power bills, and producing cool luminescent light rather than searing heat.

Furthermore, these long-lasting lamps come with reduced maintenance costs since they require replacing far less often than their older analogs.

Interesting Read: LED Vs Fluorescent: What’s The Difference?

How Do Fluorescent Lights Work?

do fluorescent lights get hot

Fluorescent lights produce light in a unique way that is different from other forms of lighting. The inside of the fluorescent lamp comprises a sealed glass tube containing argon and mercury vapor and a small amount of phosphor coating on the inside wall.

The argon and mercury vapor generate an invisible ultraviolet light when an electric current is passed through them.

The phosphor coating then absorbs this ultraviolet light and converts it into visible light — resulting in bright, excellent luminescence rather than heat.

Interesting Read: How Long Do Fluorescent Bulbs Last?

Do Fluorescent Lights Get Hot?

Now that we know how fluorescent lights work, the question remains: do they get hot? The answer is yes and no. Fluorescent lights themselves don’t emit heat — instead, their bulbs contain a ballast that can produce heat as it regulates the electric current to the light.

However, this amount of heat produced by the ballast is minimal and doesn’t usually present a problem, especially for commercial spaces or large offices with sufficient ventilation.

Furthermore, fluorescent light bulbs also don’t produce any infrared radiation, making them perfect for places where people are close to the light source since they won’t cause discomfort.

While fluorescent lights produce some heat, it is not enough to make a significant temperature difference and should not be of concern when using them for illumination.

How to Fix a Fluorescent Light That’s Not Working

do fluorescent lights get hot

Fixing a fluorescent light that’s not working can be intimidating, especially if you’ve never done it before. Fortunately, with a some-how and the right tools, you can get your fluorescent lights back up and running in no time. Here is a simple guide on how to fix your fluorescent light:

1. Unplug the fluorescent light fixtures and turn off the power switch.

2. Inspect the ballast to check for signs of damage, such as melted wires or discoloration. If you find any issues, it is best to replace the entire ballast instead of trying to fix it yourself.

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3. If the ballast appears in good condition, could you check the starter switch located at the other end of the fluorescent light fixtures? If this is not working correctly, you may need to replace it with a new one.

4. Finally, inspect the bulbs for any damage or discoloration. If they are damaged, you will need to replace them with new ones. Using fluorescent lights

Pros and Cons of Using Fluorescent Lights 

Fluorescent lighting is an option for achieving more sustainable and efficient lighting than traditional incandescent bulbs and halogen lamps. The following are the advantages

It uses less energy than other types of lighting

  • Produces cool luminescent light rather than heat
  • More expensive than incandescent bulbs.
  • Can produce a slight humming noise when in operation.
  • Produces cool, bright light.
  • Long-lasting, reduced maintenance costs.
  • Do not produce heat or infrared radiation.
  • Can be expensive to install and require regular maintenance.

Fluorescent lights have some disadvantages that should be considered before deciding whether or not to use them.

  • They require a ballast to regulate the electric current,nt which can produce some heat, although it is usually minimal and doesn’t present a problem in most cases.
  • Installing fluorescent lights may be more expensive than other lighting types, and the bulbs must be replaced regularly.

Alternatives to Fluorescent Lights

do fluorescent lights get hot

The following are alternatives to fluorescent lights:

1. LED Lights – LED lights are more energy-efficient and cost-effective than fluorescent lights as they consume less electricity and last much longer. They also generate very little heat, making them perfect for enclosed spaces such as homes or offices.

2. Halogen Lights – Halogen lights produce a bright, white light and use less energy than other lights. They also generate very little heat, making them an excellent option for enclosed spaces such as bedrooms or offices.

3. Incandescent Lights – An Incandescent bulb is a traditional light source that has been around for many years and is still widely used today.

Interesting Read: Why Do My Light Bulbs Keep Burning Out?

They produce a soft, warm light and are the least expensive option. However, they are not energy efficient and must be replaced frequently.

4. Natural Lighting – Natural lighting is a great way to reduce electricity costs and provide your space with some warmth and ambiance. Utilizing skylights or large windows can bring natural light into your home or office at no charge.


Can Fluorescent Lights Be Dimmed?

Yes, fluorescent lights can be dimmed with a compatible dimmer switch. However, it is essential to note that not all types of fluorescent lamps are dimmable, so it’s necessary to check before purchasing.

Are Fluorescent Lights Bad for Your Health?

Fluorescent lights are not necessarily harmful to your health, although some people may experience headaches or eye strain from prolonged exposure to bright sunlight. It is essential to ensure that the fixtures are correctly installed and not flickering or buzzing to reduce potential health risks.


Fluorescent lights offer many advantages over traditional lighting options, including energy efficiency and long life. However, it is essential to consider the pros and cons of using fluorescent lights before deciding if they are the right choice for your home or office.