What Is A19 LED Light Bulb ?

What Is A19 LED Light Bulb ?

Are you wondering about the versatility of A19 LEDs and why they are commonly found in spaces? Well, this blog is for you. As, we are going to explore the world of A19 light bulbs, understanding what they are, how they work, and why they have become the preferred choice for lighting solutions. So, let us begin. 

What Does "A19" Mean?

Let us start finding out the answer to “What is A19 LED light bulb” by getting the knowledge of the term A19. The term "A19" refers to the shape and size of the bulb. 

  • The letter 'A' signifies that it has an Arbitrary shape, and '19' represents the bulb's diameter in 1/8-inch increments. 

So, an A19 bulb is around 2.375 inches in diameter and 4.25 inches in height, making it a common, general-purpose bulb that fits in most fixtures.

Advantages of A19 LED Light Bulbs

Now, moving on to the frequently asked question of what are the benefits of A19 LED bulbs. We suggest you read the following points and we can guarantee you that you will get the answer. 

Energy Efficiency

One of the primary advantages of A19 LED bulbs is their exceptional energy efficiency. They consume significantly less energy compared to traditional incandescent bulbs, reducing your electricity bills while being environmentally friendly.


Furthermore, A19 LED bulbs have a longer lifespan, lasting up to 25,000 hours or more. This means fewer replacements, reducing maintenance costs.


Moreover, these bulbs are highly versatile and can be used in a variety of settings, from residential homes to commercial spaces, and even in outdoor lighting fixtures. They are compatible with most dimmer switches, allowing you to adjust the lighting according to your needs.

A19 LED Light Bulbs vs. Traditional Incandescent Bulbs

For your guidance, we have compared the A19 LED light bulbs with traditional incandescent bulbs. A key comparison worth noting is between A19 LED bulbs and traditional incandescent bulbs. 


A19 LED bulbs

Traditional Incandescent bulbs

Energy Efficiency

Highly energy-efficient, consume significantly less energy.

Inefficient, waste a lot of energy as heat.

Life Span

Last up to 25,000 hours or more.

Have a typical lifespan of around 1,000 hours.

Heat Emission

Emit very little heat, making them safe to handle.

Emit a significant amount of heat, posing a fire risk.


Highly versatile, suitable for various settings and dimmable.

Limited versatility, not dimmable in most cases.

Environmental Impact

Contribute to a lower carbon footprint due to reduced energy consumption.

Contribute to higher energy consumption and greenhouse gas emissions.

Initial Cost

Generally have a higher upfront cost.

Inexpensive upfront but cost more in the long run due to energy consumption and replacement needs.


Require minimal maintenance due to their long lifespan.

Require frequent replacements, resulting in higher maintenance costs.

Choosing the Right A19 LED Bulb

After getting the answer of “what is A19 LED light bulb” and showcasing the benefits of it, let us tell you some of the factors that can help you in finding the right bulb for you. 

Determine Your Lighting Needs

Before diving into the world of A19 LED bulbs, consider your lighting needs. Are you looking for bulbs for general lighting in your home, or do you need them for specific purposes, such as task lighting or ambiance? Understanding your requirements will help you choose the right brightness and color temperature.

Lumens, Not Watts

In the past, we used watts to gauge the brightness of incandescent bulbs. However, with A19 LED bulbs, it's more accurate to look at lumens. Higher lumens mean brighter light. To replace a 60-watt incandescent bulb, look for an A19 LED bulb with approximately 800 lumens, while a 100-watt equivalent LED bulb should provide around 1600 lumens.

Choose the Right Color Temperature

A19 LED bulbs come in various color temperatures, typically measured in Kelvin (K). Lower Kelvin values (e.g., 2700K) produce warm, yellowish light, as compared to traditional incandescent bulbs. Higher Kelvin values (e.g., 5000K) emit cooler, bluish light. Select a color temperature that suits the ambiance you desire for your space.

  • Warm White (2700K-3000K)
  • Ideal for living rooms and bedrooms, creating a cozy atmosphere.
  • Cool White (3500K-4100K)
  • Suitable for kitchens, offices, and task lighting.
  • Daylight (5000K and above)
  • Great for workspaces, where you need bright, focused lighting.

Check for Dimmability

If you plan to use your A19 LED bulbs with dimmer switches, ensure they are dimmable. Not all LED bulbs are compatible with dimmer switches, so check the product details to confirm. Dimmable bulbs give you control over the light intensity, creating the perfect mood for any occasion.

Understand Color Rendering

Color rendering index (CRI) measures how accurately a light source reveals the true colors of objects. A higher CRI is desirable, especially for spaces where color accuracy is crucial, like art studios or retail stores. 

  • Look for A19 LED bulbs with a CRI of 80 or higher for better color representation.

Check the Base Type

Ensure that the A19 LED bulb you choose has a base that fits your existing fixtures. The most common base types for A19 bulbs are E26 and E27, but other types are available. Confirm the compatibility to avoid any installation issues.

Read Customer Reviews

Before making a final decision, read customer reviews and ratings for the A19 LED bulbs you're considering. Real-world experiences can provide valuable insights into the bulb's performance and longevity.

In order to make your market research simpler and provide you with an extensive collection of A19 LED bulbs, we introduce Cymak LED to you. With their experience and customer friendly prices, you can easily find a perfect A19 light bulb that suits your preferences.


Understanding “what is an A19 LED bulb” can help you in finding a sustainable and cost-effective lighting solution.  From their energy efficiency and versatility to their long lifespan and environmental benefits, they have become the preferred choice for a wide range of applications.


  • Are A19 LED bulbs compatible with all fixtures?

  • A19 LED bulbs are compatible with most fixtures designed for standard incandescent bulbs.

  • Do A19 LED bulbs save money on electricity bills?

  • Yes, A19 LED bulbs are highly energy-efficient and can significantly reduce your electricity bills.

  • Can A19 LED bulbs be used for outdoor lighting?

  • Yes, A19 LED bulbs are suitable for outdoor lighting, as they are designed to withstand 

    various weather conditions.

  • Do A19 LED bulbs emit warm or cold light?

  • A19 LED bulbs come in various color temperatures, allowing you to choose between warm or cool lighting, depending on your preference.

  • Are A19 LED bulbs easy to install?

  • Yes, A19 LED bulbs are easy to install and fit into standard bulb sockets without the need for special tools or adapters.