EMC China Lab

Hand Warmer Amazon UL499 Compliance Certification

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Update time : 2025-11-10

Why is the ul test report necessary for Hand Warmers on Amazon?

 

What is ul499 Certification?

UL499 Certification is a safety standard established by UL (Underwriters Laboratories) in the United States for hand warmers. It is aimed at ensuring consumer safety through compliance with safety regulations, especially for products sold on Amazon. Amazon requires hand warmers and related products to have a UL499 report in order to continue selling them. Unlike domestic e-commerce platforms, which require testing reports to be submitted before listing products, Amazon requests the UL499 report after listing the product. If this report is not provided, popular products could be suddenly delisted, resulting in significant losses for many businesses. Therefore, it is essential to obtain the UL499 certification in advance to avoid having your product listing removed.

 

What is the difference between a UL Test Report and UL certification?

- UL Certification: This is a voluntary certification that involves product testing and factory audits. The audit is conducted quarterly, and it requires high fees, long processing times, and strict factory inspections.

 

- UL Test Report: This is a test report issued after a product is tested according to the relevant UL standards. It is more affordable, has a shorter processing time, and does not require a factory audit. However, it is only valid for use on Amazon and cannot be used for customs clearance.

 

Why is a UL Test Report required?

For any powered product listed on Amazon, a UL report is required. The test report must be issued by a laboratory accredited with ISO 17025 to ensure that the product can be legally sold and its link reinstated if removed. Amazon sellers typically receive a review email like this one (this particular email pertains to power bank sellers; different products have different standards).

 

UL499 Test Items

1. Leakage Current Test

2. Input Test

3. Leakage Current Test Under Damp Conditions

4. Normal Temperature Rise Test

5. High Voltage Test

6. Stability Test

7. Abnormal Test (DRY)

8. Abnormal Test (BYPASSED REGULATING DEVICE)

9. Static Pressure and Strength Test

10. Fuse Melt Test

11. Power Cord Tensile Test

12. Power Cord Push Test

13. Plastic Deformation Test

14. Impact Test

15. Water Spill Test

16. Ground Resistance Test

17. Waterproof Gasket Aging Test

 

UL Test Report Application Process

1. Inquiry for a quotation

2. Sign the contract

3. Send product samples

4. Pay for the testing fees

5. Lab tests the product and issues the UL test report

6. Submit the report to Amazon for review and wait for approval

 

How long does the UL499 certification cycle take, and what is required?

UL certification requires two product samples. Testing will be completed within one week of receiving the samples, and the report will be issued.

 

JJR Laboratory is a third-party laboratory in China accredited by CNAS, CMA, A2LA, and CPSC. We offer a range of testing services including emc testing, safety testing, chemical testing, lighting testing, toy testing, battery testing, and more.

 

We provide the following services:

- China: Quality inspection reports, China ROHS, CCC, GB6675

- Europe: CE-EMC, CE-RED, ukca, RoHS, REACH, Phthalates, Azo, PAHs, SCCP, EN 62115, EN 62471, Packaging Directive, Battery Directive, etc.

- USA: fcc sdoc, fcc id, ASTM F963, California 65, CPSIA, Packaging Directive, etc.

- Canada: IC-VOC, IC-ID, SOR-2011-17, etc.

- Japan: PSE, TELEC, ST 2016, etc.

- Australia: C-TICK, SAA, AS/NZS 62115, AS/NZS ISO 8124D, etc.

- Batteries: un38.3, MSDS, iec 62133, etc.


Email:hello@jjrlab.com


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