Due to a high volume of SSL and Hort applications, initial and comprehensive review timeframes are currently extended by 10 days each. Beginning April 11, review priority will be given to applications updating V5.0 products to V5.1, which may also impact review timeframes for all other SSL application types. Click here for more details about SSL application review timeframes, and here for more details about Hort review timeframes. Thank you for your understanding!

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 issuedwithin the accreditation effective and expiration dates detailed for a given laboratory. 

Testing Laboratory PartnerAccreditation
Start Date
Accreditation Expiration Date
Acuity Brands Lighting Decatur Lab8/15/169/30/2022
Acuity Brands Lighting Des Plains Lab9/3/20219/30/2022
American Testing & Assessment Laboratory, LLC1/10/201412/31/2022
Appleton Lab, Emerson Innovation Center – Pune9/11/20189/10/2020
Bay Area Compliance Laboratories (Sunnyvale)12/4/20129/30/2022
Bay Area Compliance Laboratories Corp. (Kunshan)2/6/20171/1/2023
Bay Area Compliance Labs Corp. (Shenzhen)4/1/20123/31/2023
Bay Area Compliance Labs Corp. (Dongguan)12/12/20114/1/2023
Bell-South Testing Laboratory (Shenzhen)9/25/201210/1/2020
BEST Test Service Shenzhen Co., Ltd.1/1/201212/31/2021
Belling Test Laboratory Co., Ltd3/8/20184/30/2022
Building Acoustics & Lighting Laboratories, Inc4/1/20123/31/2020
BUREAU VERITAS ADT (SHANGHAI) CORPORATION10/26/20178/31/2021
BUREAU VERITAS CONSUMER PRODUCT SERVICES (GUANGZHOU) CO., LTD, SCIENCE CITY BRANCH8/25/20213/31/2022
CCIC Southern Testing Co., Ltd.10/9/201312/31/2020
CCIC-CSA INTERNATIONAL CERTIFICATION CO., LTD (Guangzhou)11/1/201111/1/2022
CCIC-CSA INTERNATIONAL CERTIFICATION CO., LTD. SHANGHAI BRANCH11/1/201111/1/2022
Centre Testing International10/1/20119/30/2020
Consumer Lighting Testing Lab (Shanghai)3/3/20213/31/2023
Cooper Lighting Solutions, Peachtree City5/12/20176/30/2022
Cree Durham Technology Center4/12/20123/31/2022
Cree Engineering Services Testing Laboratory6/5/20123/31/2020
Cree Racine Engineering Services Testing Laboratory7/2/20133/31/2023
CSA AMERICA TESTING & CERTIFICATION LLC (Alpharetta)4/8/201211/1/2021
CSA America Testing & Certification LLC (Redmond, WA)5/11/20126/30/2021
CSA GROUP CONSUMER PRODUCT EVALUATION (CPE) SHANGHAI COMPANY LIMITED2/1/20132/1/2023
CU Lighting Ltd.9/27/20199/27/2023
Day-Brite Photometric Laboratory12/21/201512/31/2021
DEKRA Testing and Certification Shanghai LTD12/23/201512/31/2022
Deliver Co., Ltd9/16/20159/30/2022
Dialight Optics Laboratory5/28/20146/30/2022
Dongguan EMTEK Co., LTD6/11/20157/5/2024
Dongguan New Testing Centre Co., Ltd4/20/20173/31/2023
Elite Electronic Engineering Inc. 7/16/20186/30/2023
Elite Lighting2/28/20183/31/2024
EMTEK (Dongguan) Co. Ltd4/8/20193/31/2022
ETA Testing Technology Co., Ltd.11/27/201712/31/2022
Fangguang Inspection & Testing Co., Ltd.7/6/20176/30/2022
GE (China) Energy Development Co., Ltd. Lighting Technology Laboratory4/1/20123/31/2020
GE Nela Park, Product Testing4/1/20123/31/2023
GE Hendersonville Product Testing10/17/20133/31/2023
Great One Global Certification Co Ltd10/30/20126/29/2024
Guangdong Meide Testing Technology Co. Ltd2/12/20183/31/2023
Guangzhou United Testing Technology Co., Ltd.12/21/202012/31/2022
Hopestar Test Lab Limited6/29/20206/30/2021
Hubbell Lighting Photometric Laboratory5/23/20136/30/2022
Independent Testing Laboratories, Inc.1/4/201112/31/2021
Intertek Chicago, IL7/12/20111/1/2022
Intertek Hong Kong7/1/201110/14/2023
Intertek Cortland, NY10/1/20119/30/2022
Intertek India Private Limited5/13/20195/27/2022
Intertek Lake Forest, CA12/23/20136/30/2022
Intertek Testing Services (Hangzhou) Limited1/29/20141/28/2020
Intertek Testing Services NA Inc.6/10/20191/1/2026
Intertek Testing Services Shanghai1/10/201312/31/2022
Intertek Testing Services Shenzhen Ltd. Guangzhou Branch6/7/20176/30/2022
Intertek Testing Services Zhejiang Ltd. Hangzhou Branch1/29/20146/30/2022
ITL Co., Ltd10/15/20189/30/2021
Hopestar Test Lab Limited6/29/20206/30/2022
Juno Lighting, LLC10/1/20149/30/2021
Korea Institute of Lighting and ICT3/31/20151/1/2024
KTR (Korea Testing and Research Institute)4/1/20153/31/2023
Laboratory of Xiamen Leedarson Lighting Co. Ltd9/21/20189/30/2021
LCTECH Guangdong Testing Services Co., Ltd.8/27/201912/31/2022
Leading Testing Laboratories (Hangzhou City, China)11/29/201112/31/2022
Light Laboratory, Inc.6/5/20126/30/2022
Lighting Test Center Americas, Philips Lighting North America Corporation6/7/20186/30/2021
LightLab International Allentown, LLC9/24/20159/30/2022
LightLab International, LLC6/5/20123/31/2021
LSI Industries5/29/20155/29/2023
LTL (Leading Testing Laboratories) – Hangzhou11/29/201112/31/2021
Lumentra Inc.2/12/201312/31/2022
LUX-TSI Limited4/30/20124/30/2024
Ningbo Tengli Testing Co. Ltd6/2/20177/31/2022
Northern Lights Testing Laboratories9/13/20174/1/2021
Orb Optronix, CSA Group (Seattle)5/11/20126/30/2021
QAV Technologies6/25/20121/7/2020
R-Tech12/18/20175/27/2026
RAB Lighting Photometry Laboratory12/22/201412/31/2020
SCGPT Labs Energy Efficient Lighting Products1/23/201712/31/2021
SGS Taiwan Ltd., Optics Laboratory6/15/20136/14/2022
SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch9/20/20179/30/2022
SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd Branch5/14/20187/31/2022
Shenzhen Anbotek Pengcheng Compliance Laboratory Ltd9/29/20149/30/2022
Shenzhen Belling Efficiency Testing Laboratory2/24/201612/31/2022
Shenzhen Southern LCS Compliance Testing Laboratory Ltd.6/30/20163/31/2023
ShenZhen Xin An Biao Technology Service Co. Ltd4/30/20193/31/2023
Signify (China) Investment Co., Ltd12/18/201812/31/2021
Signify San Marcos Engineering Lab7/30/20196/30/2022
Spectra Lux10/16/20149/30/2022
Standard-Tech Co., Ltd Testing Center4/5/20196/30/2022
Sternberg Lighting Lab9/19/20129/30/2022
Tamco Photometric Laboratory3/12/20183/31/2020
Technical Consumer Products – Compliance Test Laboratory4/1/20143/31/2020
Testing Center of Hangzhou Hpwinner Opto Corporation9/23/20199/30/2020
TÜV SÜD America, Inc. (Alpharetta, GA)1/4/20128/31/2023
TÜV SÜD Cert & Testing (China) Co., Ltd. Shenzhen Branch2/8/20123/31/2023
TÜV SÜD Certification & Testing (China) Co., Ltd. Shanghai Branch6/28/201810/31/2023
UL India Private Limited4/5/20124/8/2023
UL International Italia S.r.l.11/8/20129/30/2023
UL LLC (Brea, CA)10/23/201511/1/2023
UL Verification Services (Guangzhou) Co., Ltd.7/26/20116/30/2022
UL Verification Services Inc. (Allentown, PA)6/18/201210/1/2022
UL-CCIC Company Limited12/22/201512/31/2022
Underwriters Laboratories Taiwan Co., Ltd.1/23/20151/22/2024
Unity Opto Technology Co., Ltd.2/1/20123/21/2022
UTEST TECHNICAL LABORATORY (Formerly Belling Test Lab)10/22/20214/30/2022
Waltek Testing Group (Foshan) Co. Ltd.7/13/20186/30/2022