What Does ETL Certificate for AC Adapter Mean?

Last updated: January 9, 2023 at 15:13 pm

Environmental testing comes with risks. You will monitor products in extreme environments, depending on significant amounts of energy, and test over longer periods. There are instances when materials like lithium-ion batteries are inherently risky. 

The types of power adapters include IT power adapters, home appliance power adapters, and AV power adapters. One of the crucial certificates you need is an ETL certification. This blog post will dig deeper into what this certification is and 

What Is ETL Certificate? 

ETL standards for Electrical Testing Laboratories. It is an organization testing the safety of electronic components and products based on a set of rigorous standards. This corporation has been around for more than 100 years (since Thomas Edison founded it), but it now acts as a division of Intertek Testing Laboratories. 

Did you know that Intertek ETL is a nationally recognized testing laboratory? The United States OSHA also acknowledged it. 

An ETL certification is a product certification awarded to products that have been found and tested to meet specific safety standards. It’s performed by a third-party testing lab, such as UL and Intertek, which guarantees the product has been created and manufactured following industry regulations and standards. 

Note that ETL certification is typically utilized for various products, including electronic and electrical devices, lighting equipment, and appliances. Other products that might carry an ETL certification include cables, chargers, power adapters, and extension cords. 

An ETL certification is essential as it helps to guarantee the reliability and safety of products used in your homes, businesses, and other settings. ETL-certified products have been tested to guarantee they’re safe and won’t risk injury or damage to any user or surrounding environment. 

A product should undergo rigorous testing and assessment to meet the needed safety standards to acquire ETL certification. Also, that process often involves testing for electrical performance, safety, durability, and environmental impact. 

Once your product has been successfully tested and certified, it will be immediately awarded an ETL logo or mark that can be shown on the product or its packaging, indicating it has been certified. 

What Is An ETL-Certified AC Adapter?

An ETL-certified AC adapter is a power adapter that has been carefully tested and certified to meet specific safety standards. As mentioned earlier, ETL certification is a process done by a third-party testing lab. 

An ETL-certified AC adapter is produced to convert AC power from a wall outlet into a form, which appliances and electronic devices can utilize. It’s often composed of a voltage regulator, a transformer, and a rectifier. They all work together to offer the device a consistent and stable power supply.

You see, using an ETL-certified AC adapter is essential as it helps to guarantee the reliability and safety of the device being powered. An ETL certification is a strict process involving testing for electrical performance, safety, durability, and environmental impact.

Using an ETL-certified AC adapter ensures the power supply meets the needed safety standards and is 100% safe. 

Do you want to know if an AC adapter is ETL certified? You can search for the ETL logo or mark it on the adapter or packaging. Further, you can also check the packaging or label for the words ETL certified or ETL listed. You can also contact the manufacturer or the ETL-approved testing lab to confirm the certification status of the AC adapter. 

Why Is It So Important to Use an ETL-Certified Power Adapter

Remember that an ETL-certified power adapter is a device created to convert electrical power efficiently and safely from one form to another. An ETL certification is considered a third-party safety testing and certification process that guarantees that your power adapter meets specific standards for performance and safety. 

You will find numerous reasons why it’s essential to use an ETL-certified power adapter. Here are some of them:

· Compliance – In rare cases, using an ETL-certified power adapter may be needed by industry standards or the law. For instance, numerous countries have regulations requiring certified power adapters in specific settings, like schools or hospitals. 

· Reliability – ETL-certified power adapters are made to be long-lasting and reliable simultaneously. That can help lessen the risk of power failure or interruption, which can be costly and frustrating.

· Compatibility – ETL certification guarantees that a power adapter is compatible with the devices it’s intended to be used with. That could help stop damage to your devices caused by a poorly designed or incompatible power adapter. 

· Safety – ETL certification guarantees that your power adapter has been tested and meets all the safety standards for electrical products. That could help avoid injuries or incidents caused by faulty or poorly designed power adapters. 

Having an ETL-certified AC adapter means that the ones you are using have been designed and built to meet safety standards, which can lessen the risk of injuries and electrical incidents. Using one with an ETL logo also means that it has undergone rigorous testing and has been considered to be of the highest quality. 

Other countries or regions may also need the use of ETL-certified power adapters. That means using one can guarantee that your adapter complies with local regulations. Also, knowing that your power adapter has been certified by a dependable and established organization can offer you confidence and peace of mind in its reliability and safety. 

How To Check If a Power Supply That Meets the ETL Certification

Fortunately, there’s a simple way to determine if a power supply has an ETL certification. Here are some steps for you to keep in mind:

1. Search the product label or packaging for the words ETL certified or ETL listed. That only means that the power supply has been tested and certified by an ETL-approved testing lab, like UL or Intertek. 

2. Check for the product model or serial number on the packaging or label. You can then utilize that information to search online for the certification status of your product. 

3. Contact the ETL-approved testing lab or the manufacturer of the AC adapter to confirm the product’s certification status. You can often find the contact details for the manufacturer on the packaging or product label or by searching online.

4. It’s also essential to keep in mind that not all power supplies are ETL certified. Others may not meet the needed safety standards. ETL certificate will guarantee the reliability and safety of your power supply. 


Are you looking for more answers about the ETL certificate for AC adapters? Well, here it is! 

Q: How to pick a good ETL-certified power adapter? 

There are things you need to remember when selecting an ETL-certified AC adapter:

Brand – Always consider buying an AC adapter from a dependable brand. It may be tempting to go with a cheaper, unknown brand. However, it’s much safer to pick a well-known brand with a track record of providing high-quality products. 

Safety – Choose an AC adapter certified by a trusted agency like ETL. That guarantee that the AC adapter you choose meets the safety standards and has undergone strict testing.

Compatibility –Ensure the AC adapter you pick is compatible with your device. That indicates that it has the proper amperage and voltage for your device. 

Price – Choose your budget and look for an AC adapter that fits within that budget. Remember that it may be tempting to choose the cheapest option, but it’s normally safer to pick a higher-quality adapter that meets all the safety standards and has a great warranty. 

Weight and size – Also, you should consider the weight and size of the AC adapter, particularly if you’ll be traveling with it. Note that a smaller and lighter one might be more convenient to carry around. 

Q: What does it mean if I buy an AC adapter that is not ETL certified?

An ETL certification is a safety certification for electrical products. It indicates the product has been tested and meets the minimum safety standards set by OSHA and the National Electrical Code (NEC).

When an AC adapter isn’t ETL certified, it only means it hasn’t undergone that testing and might not meet those safety standards. Also, using one could be dangerous and lead to fires and electrical incidents.

We recommend that you use electrical products that have been properly tested and certified to guarantee your safety and the things or people around you. 

Q: What are the differences between ETL and UL certifications? 

UL and ETL are two organizations offering electrical certifications for products. That guarantee that the products you purchase meet safety standards and are ideal for use in various locations across the globe.

ETL (Electrical Testing Laboratories) is a certification organization testing and certifying electrical products for performance and safety. It is recognized in the US, Canada, and other countries globally.

On the other hand, UL (Underwriters Laboratories) offers electrical product certification. Like ETL, it tests and certifies products to guarantee they meet safety standards set by international and national agencies.

Did you know that UL is a popular and well-respected organization sought in many nations around the globe? 

Overall, UL and ETL certifications are highly recognized and respected in the industry. Nonetheless, the requirements and standards a product should meet to get certification may differ between the two organizations.

Thus, it’s essential to check the certain standards and requirements that a product should meet to get certification from either UL or ETL. 

Q: Are local inspectors aware of the ETL Listed Mark?

Yes. Local building inspectors may be already familiar with the ETL Listed Mark, as it’s often needed for specific types of products, like electronic or electrical equipment, to be used in construction projects. 

Nonetheless, the level of familiarity with that ETL Listed Mark may differ among various building inspectors. It’s always smart to check with your local building department to identify the approvals or certifications needed for a specific project. 

Q: Is ETL like NOM certification? 

No. ETL and NOM (Normas Oficial Mexicana) are not the same. ETL is a certification mark that indicates a product has been independently tested and meets performance and safety standards. The latter is a set of mandatory technical standards in Mexico used to regulate the operation, construction, and design of services and products in various industries. 

NOM certification is needed for products sold in Mexico to ensure they meet specific quality and safety standards. Thus, ETL and NOM certifications aren’t interchangeable and are often used for various purposes. 

Q: Where can you buy ETL AC Adapters?

If you plan to buy an ETL-certified AC adapter, you can easily try searching online retailers like eBay or Amazon. Or you can also try contacting the manufacturer of the product you’re currently using to determine if they have an ETL-certified AC adapter available for purchase.

Also, you can check with your nearest electronic stores or specialty stores selling adapters and other electrical products to determine if they carry those. It’s essential to ensure you’re buying a quality and properly certified AC adapter to guarantee your device’s reliability and safety. 

Q: What other national certifications does an AC adapter should have? 


AC adapters are electronic devices that convert AC power from a wall outlet into DC that devices like phones, laptops, and other electric equipment can use. 

The national certifications AC adapters have may differ based on the country in which it’s sold or used. Nonetheless, some of the typical national certifications that AC adapters may have are the following: 

  • Federal Communications Commission (FCC)
  • Product Safety Electrical (PSE)
  • Underwriters Laboratories (UL)
  • Conformité Européene (CE)

Prowin Power Offer ETL-Listed AC Adapters

Searching for a company that provides quality ETL-listed AC adapters? Look no further because Prowin Power has got you covered. We only carry ETL-listed adapters to ensure they meet all the safety and performance standards. 

We have been offering our customers reliable and quality products and services for years. We offer peace of mind to all our customers. It’s simply our practice. 

If you’re ready to purchase, contact our team today for further details! 

Are you trying to get the right power supply vendor? Let a reliable supplier provide you with high quality power supply solutions.

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