Testing Lab Requirements

DLC Approved LM-79 Testing Laboratories

The DLC accepts LM-79 results from laboratories that comply with the DLC LM-79 Testing Lab Requirements. A list of acceptable labs is maintained below. Testing must be conducted and reports must be issued within the accreditation effective and expiration dates detailed for a given laboratory. 

Testing Laboratory PartnerAccreditation
Start Date		Accreditation Expiration Date
Acuity Brands Lighting Decatur Lab9/16/249/30/2026
Acuity Brands Lighting Des Plains Lab8/29/20239/30/2026
Appleton Group9/3/20249/30/2025
Bay Area Compliance Laboratories Corp. (Kunshan)6/20/20241/1/2027
Bay Area Compliance Labs Corp. (Shenzhen)3/11/20253/31/2027
Bay Area Compliance Labs Corp. (Dongguan)4/18/20244/1/2027
BEST VERIFICATION LLC(BEST TEST SERVICE SHENZHEN CO.,LTD)12/31/20223/31/2027
Bestway Compliance Co, LTD. (formerly ShenZhen Xin An Biao Technology Service Co. Ltd)4/30/20193/31/2027
BUREAU VERITAS CONSUMER PRODUCT SERVICES (GUANGZHOU) CO., LTD, SCIENCE CITY BRANCH8/25/20213/31/2026
Bureau Veritas CPS Technology Services (Guangzhou) Co., Ltd8/7/20259/30/2027
CCIC-CSA INTERNATIONAL CERTIFICATION CO., LTD (Guangzhou)4/29/202411/1/2026
Consumer Lighting Testing Lab (Shanghai)3/11/20243/31/2027
Cooper Lighting Solutions, Peachtree City5/22/20246/30/2026
Cree Racine Engineering Services Testing Laboratory3/1/20233/31/2026
CSA AMERICA TESTING & CERTIFICATION LLC (Alpharetta)12/1/202312/31/2026
CSA Group – Irvine, CA6/21/20246/30/2026
CSA GROUP CONSUMER PRODUCT EVALUATION (CPE) SHANGHAI COMPANY LIMITED7/9/20243/1/2027
Current, Greenville Product Testing (Greenville, SC)5/13/20246/30/2026
Day-Brite Photometric Laboratory11/21/202412/31/2026
DEKRA Testing and Certification Shanghai LTD11/15/202412/31/2026
Deliver Co., Ltd8/27/20249/30/2026
Dialight Optics Laboratory7/2/20256/30/2026
Dongguan New Testing Centre Co., Ltd2/12/20253/31/2027
EMTEK (Dongguan) Co. Ltd9/15/20227/5/2030
ETA Testing Technology Co., Ltd.12/7/202312/31/2026
Guangdong GTG Testing Technology Co., Ltd.2/20/20243/31/2026
Guangdong Meide Testing Technology Co. Ltd2/20/20243/31/2025
Illuminations Testing Laboratory; Inc.6/15/20186/30/2026
Intertek Hong Kong7/1/20116/30/2026

Intertek India Private Limited		5/18/20245/17/2026
Intertek Cortland, NY5/22/20189/30/2026
Intertek Lake Forest, CA12/23/20138/31/2025
Intertek Testing Services NA Inc.6/10/20191/1/2026
Intertek Testing Services (Shanghai FTZ) Co., Ltd12/5/202412/31/2026
Intertek Testing Services Shenzhen Ltd. Guangzhou Branch2/27/20241/1/2026
KIEL Institute3/31/20151/1/2027
LCTECH Guangdong Testing Services Co., Ltd.12/3/20249/30/2026
Leading Testing Laboratories (Hangzhou City, China)11/15/202412/31/2026
Light Laboratory, Inc.7/14/20236/30/2026
LightLab International Allentown, LLC8/27/20249/30/2026

LSI Industries		5/29/20155/29/2027
Lumentra Inc.12/21/202212/31/2026
Musco Lighting Photometry Laboratory

12/30/2024
12/31/2025
Nichia America Corporation3/27/20253/31/2026
Ningbo Tengli Testing Co. Ltd6/12/20227/31/2026
R-Tech12/18/20175/27/2026
SGS Taiwan Ltd., Optics Laboratory6/15/20136/14/2025
SGS-CSTC Standards Technical Services Co., Ltd. Ningbo Branch11/30/2025
SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd Branch5/14/20187/31/2026
Shenzhen AOCE Electronic Technology Service Co., Ltd.3/12/20244/1/2025
Shenzhen Belling Efficiency Testing Laboratory12/3/202412/31/2026
Shenzhen Southern LCS Compliance Testing Laboratory Ltd.3/28/20253/31/2026
Signify Boisbriand Engineering Lab7/21/20236/30/2026

Signify (China) Investment Co., Ltd
12/18/2018
12/31/2025
Signify Monterrey Laboratory9/23/202410/15/2026
Spectra Lux9/24/20249/30/2025
Testing Laboratory of Xiamen Topstar Lighting Co., Ltd.8/22/20239/30/2026
TÜV SÜD America, Inc. (Alpharetta, GA)9/13/20238/31/2025
TÜV SÜD Cert & Testing (China) Co., Ltd. Shenzhen Branch2/8/20122/28/2027
TÜV SÜD Certification & Testing (China) Co., Ltd. Shanghai Branch6/28/201810/31/2027
UL India Private Limited5/8/20234/8/2029
UL International Italia S.r.l.4/11/20232/1/2027
UL LLC (Brea, CA)10/23/201510/1/2026
UL Verification Services (Guangzhou) Co., Ltd.7/2/20246/30/2026
UL Verification Services Inc. (Allentown, PA)12/15/202310/1/2026
UL-CCIC Company Limited12/16/202212/31/2026
Underwriters Laboratories Taiwan Co., Ltd.1/23/20151/22/2027
UTEST TECHNICAL LABORATORY (Formerly Belling Test Lab)4/22/20244/30/2028

Visionaire Lighting Laboratory		12/5/202312/31/2025

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