UL vs. ETL: A Buyer's Guide to LED Lighting Safety & Quality

by Taryn Pope

Quick Summary

UL and ETL marks both show that an LED lighting product has been tested by a recognized safety laboratory and meets accepted electrical safety standards. UL is widely known for its long history in product safety, while ETL is operated by Intertek and tests products against standards from groups such as UL, ASME, and ASTM. For buyers, either mark can signal that a light has passed safety checks for risks like overheating, shock, fire, poor construction, and improper use in damp or wet locations. Choosing certified LED lights can also support building code compliance, smoother inspections, and greater confidence during home or commercial lighting upgrades.

You’re at the store or shopping online, comparing 2 similar-looking lights. One has a “UL” sticker, while the other has an “ETL” mark. A quick Google search or a conversation with a store employee might tell you that both UL and ETL are Nationally Recognized Testing Laboratories, known as NRTLs, trusted by the U.S. government to evaluate electrical product safety. Their markings signal that the products meet recognized safety standards. UL tests products for safety, and ETL does the same by testing against accepted standards, including UL standards. Still confused about UL vs ETL lighting? Let’s clear everything up below.

What Does UL Listed Mean for Lighting?

A UL-listed product indicates that the manufacturer has invested the time and energy required to meet rigorous testing requirements and safety benchmarks. 

Underwriters Laboratories (UL) was founded in 1894 after a series of deadly fires around the U.S. In the last 100+ years, UL basically wrote the book on safety for electrical equipment.

UL tests help ensure lighting fixtures are designed to minimizes the dangers of electrical shocks, overheating, catching fire, or breaking loose once installed. For LED lights designed for damp or wet environments, UL testing also verifies can safely handle those conditions. Essentially, a UL symbol on a light is a sign of assurance that it was found to be high quality and safe. 

Do LED Lights Need to be UL Listed?

UL or ETL listing is often a requirement for many lighting applications. In fact, some electricians may refuse to install lighting fixtures without these certifications, and inspectors may not allow them on jobs in the first place.

UL listing can affect your homeowners insurance, too. Insurance companies may be less likely to look favorably on a fire caused by a non-UL labeled light fixture. For the safety of your home, you should only use lights that have earned UL or ETL certification.

 

ETL: Electrical Testing Laboratories

 

ETL, initially founded by Thomas Edison in 1896 as the Lamp Testing Bureau, is now operated by Intertek. ETL tests products against published safety standards from various organizations, including UL, ASME, and ASTM. The ETL mark is widely accepted across the U.S. and Canada as proof of product compliance with these standards. For LED lighting, ETL certification means that each product has undergone extensive testing and meets all safety, quality, and durability requirements for national standards in both countries.

The Dangers of Non-ETL Lighting

Non-ETL LED lights may not provide consistent illumination, color temperature, or lifespan, leading to frequent replacements and unexpected failures.

Reduced Energy Efficiency

They may not be as energy-efficient as certified products, leading to higher energy costs for your home or business.

Electrical Hazards

Non-ETL-certified ceiling lights may have faulty wiring or poor insulation, increasing the risk of electrical shocks and short circuits.

Fire Risk

Without ETL certification, recessed ceiling lights might be made from poor materials that can overheat or catch fire, especially if installed near insulation or other flammable materials.

Poor Quality Materials

These lights may use inferior materials that will melt and overheat due to improper thermal heat dissipation.

Failure to Adhere to Building Codes

Using non-ETL-certified lights can result in non-compliance, affecting insurance claims and property value.

ETL Certification vs. UL

The key distinctions between UL and ETL lie in their certification processes and brand recognition. UL's process is typically more extensive and covers a wider range of evaluations. However, both certifications signify compliance with stringent safety standards. 

What is the Difference Between UL and ETL Certification?

  • Recognition and Trust: UL has a longer history and higher brand recognition among consumers, which can be a significant factor in market acceptance.
  • Testing Process: Both organizations use similar testing methods and standards, but manufacturers often find ETL's testing process more streamlined and quicker.
  • Cost: ETL certification can be more cost-effective for manufacturers, potentially lowering overall consumer costs.

ETL vs UL Certified: Why Choose One Over the Other?

  • Manufacturer's Perspective: Choosing between UL and ETL often comes down to cost, turnaround time, and the specific requirements of the target market. ETL is frequently chosen for its cost-effectiveness and faster certification process.
  • Consumer's Perspective: For consumers, the presence of either mark (UL or ETL) assures that the product is safe and compliant. However, some consumers might prefer UL due to its longer-standing reputation.

The Importance of Certification for LED Lighting

UL and ETL certifications are not just labels, they are crucial in ensuring the safety and quality of LED products. While they may differ in their processes and market recognition, both provide valuable assurance to consumers and professionals, giving you the peace of mind that safety standards are met.

  • Safety Assurance: UL and ETL certifications indicate that LED products have been rigorously tested to prevent electrical hazards and other safety risks.
  • Insurance: Some insurance companies may require the use of certified products to provide coverage.
  • Quality Indicator: These certifications serve as a benchmark for product quality, encompassing performance and durability standards.
  • Regulatory compliance: UL and ETL certifications are not just about safety and quality; they are also about regulatory compliance. Many building codes and regulations require UL or ETL-listed products, making these certifications essential for widespread application and ensuring that your LED lighting choices are legal and compliant.
  • Consumer and Professional Confidence: Certified products provide peace of mind to end-users and industry professionals, ensuring that safety standards are met.

It's crucial to note that while certification is essential, it should be considered alongside other factors such as energy efficiency, color rendering index, and overall product quality when selecting LED lighting solutions. You can learn more about these in our Guide to LED Lighting Standards and Certifications. 

Choose Safer LED Lighting With UL vs ETL Certification

Whether you choose UL or ETL-certified LED lighting, both certifications offer a high level of assurance regarding the product's safety, performance, and compliance. However, regardless of your choice, always prioritize certified products to ensure the safety and reliability of your LED lighting. Whether you’re looking for new lighting for your business or remodeling your kitchen, you can trust NuWatt to deliver safety and quality.

FAQs

What Is the Difference Between UL and ETL Lighting?
UL and ETL are safety marks from different testing groups. UL comes from Underwriters Laboratories, while ETL comes from Intertek. Both show that a lighting product meets recognized safety standards.

Is ETL as Good as UL?
Yes. ETL is widely accepted in the U.S. and Canada. It often tests products using the same safety standards used by UL.

Do LED Lights Need UL or ETL Certification?
Many projects require certified lighting for code approval, inspections, and safe installation. Electricians may also refuse to install non-certified fixtures.

Why Avoid Non-Certified LED Lights?
Non-certified lights may have poor wiring, weak insulation, or bad heat control. These issues can lead to flickering, early failure, shock, or fire risk.

Should I Choose UL or ETL LED Lighting?
Either mark can be a safe choice. Focus on certified products that also match your brightness, color temperature, dimming, and installation needs.

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