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IT/AV Media

Audio, Visual and IT Equipment Testing and Certification

IT / AV Multimedia Testing

With the popularity of the Internet, IT\AV multimedia has become an indispensable part of people's lives, and we pay more and more attention to safety and EMC reliability of products. HTW has obtained the CBTL laboratory qualification, and has focused on the testing and certification services in an early time. The efficient and accurate testing capability ensures the safety of information products for our customers.

Product We Test

Sound system

Media Player


Audio amplifier

Digital Piano

Electronic musical  instrument

TV Equipment

CD/DVD player



MP3/MP4 headset

Video camera

TV game

CD/DVD Recorder


Rear Projection TV

Plasma TV


Power Supply/Charger

Power Adapters, Switching Power Supplies, And Various Power Supplies 



Microcomputers, Tablets, Laptops, Handheld Computers, Personal Computers, Mobile Phones, Mice, Keyboards, Headsets, And Other Computers And Computer Accessories


Household Entertainment

Televisions, Speakers, Amplifiers, Radios, Recorders, Players, Encoders, Decoders, Monitors, Video Recorders, Set-Top Boxes, Network Home Audio And Video Equipment Such As Set-Top Boxes


Display Devices

Monitors, Displays, Projectors, Monitors, Camera Monitoring Equipment, Computer Game Consoles, Learning Machines, and other equipment that can be used with computers


Office Peripheral Product

Office Equipment Such As Fixed Telephones, Printers, Fax Machines, Copiers, Scanners, Plotters, Mobile Storage, Mobile Payment Devices, Cash Registers, Money Counters, Readers, Terminal Servers,


Security Equipment

IP Camera, Monitors


Transmission Device

Communication Equipment And Systems, Network Access, Relays, Terminal Equipment, Optoelectronics, And Optical Transmission Equipment, Modems, Etc.


HTW Qualifications

CMA, CNAS (17025), AQSIQ, IEC CBTL, US UL, A2LA, FCC, TIMCO, CEC, DOE, Germany TUV, EMCC, Japan VCCI, Norway DNV, NEMKO, UK ITS, Canada IC, Hong Kong EMSD and other qualifications have been obtained. 

Why Choose Us?

HTW Lab, accredited by CNAS, CMA, CNCA & A2LA, consistently operates competently and generates accurate and valid results in accordance with ISO/IEC 17025. We are also IECEE CB Scheme Test Laboratory (CBTL). Thus, testing reports from HTW Lab can be accepted between countries.

HTW has closely contact with certification agencies and competent agencies around the world to provide customers with one-stop global certification services in more than 100 countries and regions for more than 20 years.

Your Benefits At A Glance:

1.20 Years Of Experience

HTW has extensive experience in all types of devices and regulatory requirements across markets. 

2.Provide Free Modification Service Program

Together with our wealth of knowledge in complex regulations globally, HTW provides a complete suite of testing solutions according to your needs including free Modification service.

3.Save time to global markets

With over 7,000 square meters of labs, HTW offers the best testing cycles and you don't have to wait in line, HTW offers 1-on-1 service.With our in-depth insight of global product quality and regulatory requirements, HTW can optimize your costs and minimize your time to market.

4.Complete qualifications

ISO/IEC 17025 lab, accreditated by CNAS, CMA,A2LA,GLP.

5.Competitve price

located in China ,Testing costs are lower than other labs.

    We're Here for You

    We're based in China but regularly work with clients globally. We will get back to you in 1 working day.

    Our Business Hours: 

    8.30am - 5.00pm in CST (UTC/GMT+08:00) Monday - Friday 


    Looking forward to receiving your email !

    HTW Testing and Certification Solutions.

    Service Procedure

    1. Provide us with product pictures, product brochures/manuals

    2. Determine your needs(test report purpose/ test itmes/ standards)

    3. Receive the testing/compliance service proposal and quotation 

    4. Sign contract and make payment

    5.Send samples (please contact us for address info.)

    6.Informed project opening and test TAT(turn around time) via email


    8.Draft report for your confirmation

    9. Formal reports endorsed by ILAC - CNAS (electronic version) 

    10.Sample Discard or Return

    Q & A

    Q & A
    Q: If I apply for both UL and CE certification, do I need to provide two sets of samples for testing?

    A: The tests required by UL and CE certifications are generally the same. There are only partial differences, so only one set of samples is required.

    Testing We Support

    Testing We Support

    Test items (Safety)

    Input Current Test

    Label Wiping Test

    Energy Level Test

    SELV Test

    Current-Limiting Circuit Test (LCC)

    Power-Limiting Test (LPS)

    Ground Continuity Test

    Temperature And Humidity Test


    Impact And Other Mechanical Stress Tests 

    Ball Pressure Test

    Normal Temperature Rise Test

    Touch Voltage

    Touch Current Test

    Withstand Voltage Insulation Test

    Abnormal Test

    Component Failure Test, etc.


    Test items (EMC)

    Conduction Test

    Radiation Test

    Harmonics Test

    Voltage Fluctuations And Flicker Test

    Static Electricity Test

    RS Test

    EFT Test

    Surge Test

    CS Test

    Power Frequency Magnetic Field Test

    Voltage Sag Test, etc.


    Test items (others)

    1. For external power supply:

    ERP, CEC, DOE, NRcan, MPES, China Energy efficiency


    2. For battery charger:

    DOE, CEC


    62471:  Photobiological safety of lamps and lamp systems

    62471-5: Photobiological safety of lamps and lamp systems – Image projectors

    60825-1: Equipment classification and requirements

    Services We Offer

    Services We Offer

    1. Certification

    International CB 

    EU CE

    Germany GS , TUV 

    America UL, ETL, FCC 

    Canada  CSA, IC

    China CCC

    Korea  KC

    Japan  PSE

    Australia  SAA, RCM

    Taiwan BSMI

    Singapore CPS,IMDA

    Malaysia SIRM

    Other Global certifications 

    2. Testing

    Safety test

    EMC test

    Energy efficiency test

    Battery test

    ERP, CEC, DOE, NRcan, MPES, CECP,DOE, CEC test

    Photo biological safety of lamps and lamp systems

    Email us

    Standards We Test To

    Standards We Test To 

    Country / Area


    Electromagnetic compatibility (EMC)

    IEC report

    IEC 60950-1

    IEC 60065

    IEC 62368-1:2014

    IEC 62368-1:2018

    CISPR 32, CISPR 35

    IEC 61000-3-2, IEC 61000-3-3


    EN 62368-1:2014+A11/2017

    EN IEC 62368-1:2020+A11:2020

    EN55032, EN55035, EN55024, EN61000-3-2,  EN61000-3-3

    United States

    UL 62368-1:2014

    UL 62368-1:2019

    FCC Part 15B


    CAN/CSA C22.2 No. 62368-1 -14

    CSA C22.2 No. 62368-1:19



    J60950-1 (H29)

    J60065 ( H26 )

    J62368-1 (H30)

    J55013 (H22), J55022 (H22), J55032 (H29) ,


    AS / NZS 60950-1

    AS / NZS 60065

    AS / NZS 62368-1:2018

    AS / NZS CISPR 32




    GB / T 9254, GB 17625.1, GB / T 17625.2, GB / T 17618, GB / T 13837, GB / T 9383


    Email us for more information 

    Countries/Area SafetyEMC
    EuropeanEN 60065





    United StatesUL60065FCC Part 15
    CanadaCSA C22.2 NoICES-003
    AustraliaAS/NZS 60065AS/NZS CISPR 13



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