UL Certification Testing Service Provider

JJR Laboratory in China is a professional third-party UL certification organization authorized by UL. Equipped with independent testing laboratories, we offer UL certification, pre-testing, and commissioned testing services for products in fields such as connectors, electronic components, electrical accessories, and new energy parts.  

Our laboratory maintains a long-standing, friendly partnership with UL. As a UL TPTDP (Third-Party Test Data Program) authorized witness testing lab, we feature comprehensive facilities, state-of-the-art equipment, and experienced UL certification engineers. We can help your products achieve UL certification to access the North American market, making us your premier partner for UL certification.  

Introduction to UL Certification  

UL stands for Underwriters Laboratories Inc., a recognized authority in safety testing and certification. UL is one of the largest private organizations globally dedicated to safety testing and evaluation. It operates with a stringent organizational management system, standards development, and product certification procedures.  

The UL Mark is widely accepted as proof that a product complies with U.S. safety regulations. It is also officially recognized by provinces and territories in Canada.  

In the U.S., UL certification is voluntary and focuses on testing and certifying product safety performance. It does not cover electromagnetic compatibility (EMC).  

In essence, UL primarily provides product safety certification and related proof of safety compliance, aiming to ensure that the market offers products with a high level of safety. This contributes to protecting human health and property while fostering international trade by reducing technical barriers.  

Advantages of JJR Laboratory's UL Certification Services  

1. Professional Engineering Guidance:  

Our engineers assist with unit division, structural evaluation, factory audit preparation, and sample production guidance to meet UL standards.  

2. Pre-testing Services:  

We offer comprehensive pre-testing following standard requirements, ensuring a high success rate for UL, TUV, and CQC certifications. This saves significant costs associated with re-testing.  

3. Localized Testing:  

Products can be tested directly at JJR Laboratory (UK lab) without needing to ship them to the U.S., providing a fully controlled process.  

4. On-Site Witnessing:  

Companies can send technical personnel to witness the ul testing process at our lab, facilitating direct communication and mutual learning.  

5. Dedicated Service Team:  

Our experienced engineers provide one-on-one service throughout the process, significantly improving certification efficiency and success rates.  

JJR Laboratory UL Certification Services  

Electronic Products:  

1. UL 62368-1  

2. UL 61010-1  

3. UL 60950-1  

4. UL 1082  

5. UL 1310  

Wireless Devices:  

1. UL 60950-22  

2. UL 294  

3. UL 498A  

4. UL 61010-2-201  

Battery Products:  

1. UL 2054  

2. UL 1642  

3. UL 1973  

4. UL 2580  

5. UL 62133  

6. UL 2271  

Automotive Products:  

1. UL 2089  

2. UL 248-14  

3. UL 935  

4. UL 60730-1  

5. UL 2580  

6. UL 1973  

7. UL 2271  

8. UL 3030  

9. UL 60950-22  

10. UL 62368-1  

11. UL 2202  

12. UL 2594  

13. UL 2231  

Steps for UL Certification  

1. Project Confirmation:  

Confirm the UL standard, certification cost, timeline, and required sample quantities.  

2. Documentation Preparation:  

Prepare all necessary documentation and materials as per UL requirements.  

3. Sample Testing:  

Send samples to JJR Laboratory for testing.  

4. Report Issuance:  

If the product passes UL standards, a formal test report is issued.  

5. Factory Audit:  

UL conducts an initial factory inspection to ensure compliance with standards.  

6. Mark Usage:  

After successful inspection, the applicant is authorized to use the UL Mark.  

Frequently Asked Questions about UL Certification  

1. How long is the UL certificate valid?  

UL certification has no expiration date. It remains valid as long as annual factory inspections are conducted on time and maintenance fees are paid.  

2. How long does UL certification take?  

The process typically takes 2-3 months, depending on the readiness of company documentation and product quality. Faster testing and approvals can reduce this timeframe significantly.  

3. What is the cost of UL certification?  

Costs vary greatly depending on the product and industry, typically ranging from $5,000 to $15,000. ul certification costs include two components:  

- Initial testing fees, which depend on specific product standards.  

- Ongoing maintenance fees, covering factory audits, file maintenance, and UL Mark fees.  

4. Does UL certification require a factory inspection?  

Yes, an initial factory inspection is required before shipment. The purpose is to ensure ongoing compliance with UL certification standards and consistency between production samples and test samples.  

Subsequent inspections occur quarterly, totaling four times annually.