The UL certification proves that a product has been rigorously tested and meets the international safety and quality standards of Underwriters Laboratories (UL) — a globally recognized certification organization. UL-certified products are trusted for their safety, reliability, and quality, especially in the U.S. and international markets.
1. Types of UL Labels
UL Listed
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Applies to fully functional, standalone products.
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Thoroughly tested for fire resistance, electrical safety, and mechanical durability.
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Often listed in global safety catalogs, highlighting the brand’s quality and reliability.
UL Recognized
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Intended for components or parts of a complete product.
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Tested under less stringent conditions than UL Listed but still meets industry requirements.
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Common for electrical components, power supplies, or insulating materials.
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Even as partial components, UL Recognized items must meet high-quality standards to be integrated safely into larger systems.
2. How to Identify a Genuine UL Label

A legitimate UL label should include:
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The “UL” letters in a circle with a ® symbol under the “U.”
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The word “LISTED” in uppercase, under or beside the circle.
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A 4-character identification code (or 6 in special cases).
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A clear product description matching the labeled item.
3. Notes on UL Standards
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UL standards mainly apply to products exported to the U.S.
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cUL or ULC logos: For Canadian markets.
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cULus label: Indicates certification for both U.S. and Canadian standards.
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Labels may also include the file number (starting with “E”), manufacturer’s name or logo, and technical specifications such as model numbers or catalog codes.

4. Steps to Verify a UL Certification Number
Step 1: Locate the UL label on the product
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Find the UL label on a visible or detachable part of the product.
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Some manufacturers provide certification details on their websites for customer convenience.
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Example: CAT VAN LOI with certification number E544671.
Step 2: Access UL Product iQ
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UL Product iQ is an official, online platform for quick searches of certified products.
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Access is now free and no longer requires a company email address.
Step 3: Enter search information
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Option 1: Input the certification number from the UL label.

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Option 2: Search by company or brand name.

Step 4: Review certification details
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The results will display:
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Document: Certification file
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Company Name: Manufacturer name
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Product Description: Description of the certified product
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Click the Document link to view details like product category, file number, model list, and company information.

Summary
Verifying a UL certification number ensures that products meet international safety and quality standards, while reinforcing brand reputation. With UL Product iQ, the verification process is now faster, clearer, and more accessible.







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