Power Supply / Charger
Power Supply / Charger
Power supply products are widely used as necessary accessories of other devices. HTW, has been focused on the testing and certification services in an early time, and we were certified as an IECEE CBTL. All these ensure our efficiency and accurate testing capability.
Testing We Offer
Power Supply & Charger We Test To
Standards We Test To
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
Email:
Looking forward to receiving your email !
HTW Testing and Certification Solutions.
1. The reason of radiation test failed
There are many reasons for EMC radiation tests failed according to the standard, such as interface filtering, cable design, grounding, shielding etc. Generally speaking, it is the problem of PCB design. For TCB, a multilayer board is a recommended choice, as it can reduce impedance. The circuit on the PCB board is required to be straight and short.
2. The problems of product information
Label, Schematic, User manual, CDF/BOM, PCB layout
ISO 17025, CMA, CNAS , 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.
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
Drop
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
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
7.Testing
8.Draft report for your confirmation
9. Formal reports endorsed by ILAC - CNAS (electronic version)
10.Sample Discard or Return