The Hong Kong Standards And Testing Centre Ltd (STC)

At STC, we provide energy efficiency evaluation, testing and certification for a wide range of electrical products in accordance to relevant labeling regulations and voluntary labeling standards.  Our Energy Efficiency Testing &amp; Certification services include:  Energy Efficiency Labeling Scheme-Hong Kong(IEC, CIE 84, GB) Compact Fluorescent Lamps(CFLs)(Mandatory*)Televisions (Mandatory*)Household Induction Cookers(Mandatory*)Non-integrated Compact Fluorescent lamps(CFLs)Automatic Electric Rice CookersMicrowave OvensComputersPhotocopiersFax MachinesPrintersMultifunction DevicesEnergy Performance Measure Testing-International &amp; Europe(Directive 2009/125/EC, IEC, EN) DC or AC Supplied Electronic Control Gear for LED modulesMeasurement of Standby Power for household electrical appliancesPower Consumption of audio, video and related equipmentEnergy Efficiency of electric lamps for household useTest Method for Calculating the Energy Efficiency of Single-Voltage External AC-DC Power SuppliesEco-design Requirements for: TelevisionsSimple set-top boxesNon-directional household lampsStandby &amp; off mode electric power consumption of electrical &amp; electronic household &amp; office equipmentNo-load condition electric power consumption and average active efficiency of external power suppliesFluorescent lamps without integrated ballast, for high intensity discharge lamps, &amp; for ballasts &amp; luminaries able to operate such lamps Energy Performance Measure Testing–United States CaliforniaAppliance Efficiency ProgramInternational Electro-technical Commission(IEC 62087)Energy Efficiency of Single-Voltage External AC-DC and AC-AC Power Supplies(USEPA)Energy Efficiency Battery Charger System Test Procedure Version 2.2(ECOS, EPSI)Electro-technical Commission(IEC 62301 &amp; IEC 62087,Title 20 Appliance Efficiency Regulations)Energy Performance Measure Testing– Australia &amp; New Zealand Performance of external power supplies – Test method and energy performance mark(AS/NZS 4665.1)Performance of external power supplies – Minimum energy performance standard requirementsIf you have any further question, please feel free contact us atenquiry@stc.group or visit our website:https://www.stc.group/en/contact 

Energy Efficiency Labeling

Product Performance Testing LED Luminaires / Light Bulbs / Light Tubes / BallastsCFL Light Bulbs / Light TubesElectric Rice CookersElectric Induction CookersMicrowave OvensElectric Water Storage HeatersTelevisions SetsPhotocopiersBattery ChargersExternal Power SuppliesIngress Protection (IP) TestingIf you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact 

Electrical and Electronics Product Performance Testing

Our Electrical Products Division offers a wide range of services to ensure the safety of office and home appliances, including:	Providing technical support services at different design stages	Offering a full scope of electrical safety testing service	Providing one-stop product safety testing and certification services according to customer specifications and relevant product standards, e.g. screening test for RoHS, tests for PAHs and California Energy Efficiency testVoltage Regulating Devices Safety Test:	Isolating Transformer	AC/AC Adaptor	AC/DC Adaptor	Switching Power Supply (Single output)	Additional charge for Direct plug-in type: ABR4, EN50075, AS/NZS 3112 Annex J

Voltage Regulating Devices Safety Test

Our Electrical Products Division offers a wide range of services to ensure the safety of office and home appliances, including:	Providing technical support services at different design stages	Offering a full scope of electrical safety testing service	Providing one-stop product safety testing and certification services according to customer specifications and relevant product standards, e.g. screening test for RoHS, tests for PAHs and California Energy Efficiency test.Business Information Equipment Safety Test for EN 60950-1 / IEC 60950-1:	ITE Product (less than 50W)	ITE Product (more than 50W, less than 300W)	ITE Product (more than 300W)	AC/DC adaptors / Switching mode power supply (Single output)

Business Information Equipment Safety Test

 STC is the first non-governmental laboratory in Hong Kong to receive accreditation from Certification and Accreditation Administration of the People’s Republic of China (CNCA) to provide comprehensive ChinaCompulsory Certification (CCC) testing services.  Our laboratory in Dongguan, is the first non-government organization in China to obtain designated CCC testing laboratory status providing full scope CCC toy testing services and CCC testing services for information technology equipment, lighting products and audio-visual equipment.     STC provides one-stop CCC and support services from application and document preparation to type testing and factory inspection to meet all local and oversea CCC needs.  Information Technology Equipment (GB 4943.1-2011, GB 17625.1-2012, GB/T 9254-2008) MicrocomputersPortable computersComputer display devices and projectorsComputer Built-in power supplies, adaptors and chargersIf you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact 

CCC China Compulsory Certificate for IT Equipment

Our Electrical Products Division offers a wide range of services to ensure the safety of office and home appliances, including: Providing technical support services at different design stagesOffering a full scope of electrical safety testing serviceProviding one-stop product safety testing and certification services according to customer specifications and relevant product standards, e.g. screening test for RoHS, tests for PAHs and California Energy Efficiency testOther Electrical Products Safety Test:  A. LED / Laser Light Beam Laser light beam in CD mechanismLED (1st measurement) LED (2nd measurement and onwards in the same sample)LED lamp B. Reliability 1. Vibration (per direction per hour) 2. Temperature / Humidity Treatment (per day) 3. Endurance Test a. Electrical (for the first 5,000 cycles or less) (for each subsequent 1,000 cycles) b. Mechanical (for the first 5,000 cycles or less) (for each subsequent 1,000 cycles)  4. Degrees of Protection Provided by Enclosures (IP code) a. Degree of protection against solid foreign objects b. Degree of protection against ingress of water  C. Component test a. Power switch/ speed control switch b. Dual-volt switch c. Switching mode power supply d. Ozone measurement  D. EMF test  E. Immunity test according to EN60335-1 a. Stand by Mode b. Electronic Protective Circuit c. Stand by Mode + Electronic Protective Circuit  F. WR2 and Fire Inspection Service a. Periodic electrical inspection WR2 in MTR retail shops b. Periodic electrical inspection WR2 in industry, commercial building, residential building: (Visual inspection is needed for each site. It's totally different from "Electrical Safety Testing".) c. Fire inspection service in MTR retail shops 

Other Electrical Products Safety Test

STC’s product safety testing services covers LVD testing to assist manufacturers in meeting CE Mark requirements.    The LVD covers health and safety risks on electrical products operating with an input or output voltage of between: 50 and 1000 V for alternating current75 and 1500 V for direct currentIt applies to a wide range of electrical equipment including:Household Electrical Appliances(e.g. coffee machines, refrigerators, microwave ovens, etc.)AV Products(e.g. TV sets, radios, video players, etc.)Luminary (Lighting) ProductsIT &amp; Office EquipmentCablesPower Supply UnitsLaser EquipmentElectrical Accessories &amp; certain components(e.g. fuses)Common Electrical Safety Testing Although commonly referred to as electrical safety testing, the actual assessments carried out extend well beyond a product’s electrical characteristics and includes: Electric Shock Hazards TestingEnergy Related Hazards TestingFlammability TestingHeat Related Hazards TestingMechanical Hazards TestingRadiation TestingChemical Hazards TestingAbnormal Operation Testing(faults and failures within the equipment)If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact 

Low Voltage Directive (LVD) Testing

V-Trust Inspection Service Co., Ltd

Wide Expertise in the Home Audio &amp; Speakers Industry  V-Trust's inspection services for home audio and speakers provide essential support to buyers, ensuring that products meet customer specifications and quality standards.  Whether it’s home audio systems or standalone speakers, V-Trust’s inspection process carefully examines product integrity, appearance, and build quality to ensure there are no defects like scratches, dents, or loose parts. Functionality checks focus on sound quality, speaker sensitivity, battery performance, and power output, along with total harmonic distortion (THD) and frequency range. Additional tests cover connectivity, including wired and wireless options, Bluetooth pairing, multi-device compatibility and other tests to confirm product reliability.  V-Trust helps buyers minimize risks and avoid costly issues by providing detailed inspection reports, complete with photographic evidence, available within 6 to 24 hours after the inspection.  Why V-Trust  ✔ Full-Time Inspectors Only: We do not hire part-time QC staff or outsource to other firms. This approach serves as a key anti-bribery measure and ensures the highest level of reliability in our inspection reports. ✔ Diverse Product Range: Our team covers a wide range of product categories, including electronics, electrical products, lighting, building materials, furniture, home décor, kitchenware, textiles, apparel, and industrial goods. ✔ 2,500+ Checklists: We offer comprehensive checklists for various product lines, drawing on our extensive QC experience. ✔ Online Booking: Easily book services through our advanced online system, and access inspection results and supply chain statistics via the QC dashboard. ✔ Quick and Efficient Service: Receive same-day quotations, with reports available 6 to 24 hours after inspection. We also offer free laboratory testing and regulatory consultations.  About V-Trust  V-Trust is the largest product inspection company in Asia, employing only full-time inspectors. With over 600 staff across 10 Asian countries, we conduct more than 110,000 inspections and audits annually, serving over 13,000 buyers worldwide.  We are experts in the quality control industry, offering a wide range of cost-effective services, including product inspections, factory audits, laboratory testing, and product certification.  V-Trust operates in China and key export markets such as India, Vietnam, Malaysia, Thailand, Bangladesh, Pakistan, Cambodia, Indonesia, and Myanmar.  For more information, please contact us:Website: www.v-trust.com 

Home Audio & Speakers Product Inspection

Wide Expertise in the TV Industry  V-Trust's inspection services for TVs and their accessories provide invaluable support to buyers, ensuring that products comply with customer requirements and quality standards.  Whether it is an order of LED TVs or SKD/CKD TV sets, the V-Trust team conducts a thorough assessment of the exterior and screen condition, ensuring there are no physical damages or defects, such as dead pixels or discoloration. Functionality and safety testing covers power, battery, display brightness and quality, sound performance, connectivity options, and other tests before products are released to the market.  V-Trust helps buyers minimize risks and avoid costly issues by providing detailed inspection reports with photographic evidence available within 6 to 24 hours after the inspection.  Why V-Trust  ✔ Full-Time Inspectors Only: We do not hire part-time QC staff or outsource to other firms. This approach serves as a key anti-bribery measure and ensures the highest level of reliability in our inspection reports. ✔ Diverse Product Range: Our team covers a wide range of product categories, including electronics, electrical products, lighting, building materials, furniture, home décor, kitchenware, textiles, apparel, and industrial goods. ✔ 2,500+ Checklists: We offer comprehensive checklists for various product lines, drawing on our extensive QC experience. ✔ Online Booking: Easily book services through our advanced online system, and access inspection results and supply chain statistics via the QC dashboard. ✔ Quick and Efficient Service: Receive same-day quotations, with reports available 6 to 24 hours after inspection. We also offer free laboratory testing and regulatory consultations.  About V-Trust  V-Trust is the largest product inspection company in Asia, employing only full-time inspectors. With over 600 staff across 10 Asian countries, we conduct more than 110,000 inspections and audits annually, serving over 13,000 buyers worldwide.  We are experts in the quality control industry, offering a wide range of cost-effective services, including product inspections, factory audits, laboratory testing, and product certification.  V-Trust operates in China and key export markets such as India, Vietnam, Malaysia, Thailand, Bangladesh, Pakistan, Cambodia, Indonesia, and Myanmar.  For more information, please contact us:Website: www.v-trust.comEmail: cs@v-trust.com 

TV & Accessories Product Inspection

Wide Expertise in the Power Tools Industry  V-Trust's inspection services for power tools provide invaluable support to buyers, ensuring that products comply with safety requirements and quality standards.  By detecting potential defects, electrical issues, and performance problems before products are released to the market, V-Trust helps buyers minimize risks and avoid costly issues.  Detailed inspection reports with photographic evidence available within 6 to 24 hours after inspection.  Why V-Trust  ✔ Full-Time Inspectors Only: We do not hire part-time QC staff or outsource to other firms. This approach serves as a key anti-bribery measure and ensures the highest level of reliability in our inspection reports. ✔ Diverse Product Range: Our team covers a wide range of product categories, including electronics, electrical products, lighting, building materials, furniture, home décor, kitchenware, textiles, apparel, and industrial goods. ✔ 2,500+ Checklists: We offer comprehensive checklists for various product lines, drawing on our extensive QC experience. ✔ Online Booking: Easily book services through our advanced online system, and access inspection results and supply chain statistics via the QC dashboard. ✔ Quick and Efficient Service: Receive same-day quotations, with reports available 6 to 24 hours after inspection. We also offer free laboratory testing and regulatory consultations.  About V-Trust  V-Trust is the largest product inspection company in Asia, employing only full-time inspectors. With over 600 staff across 10 Asian countries, we conduct more than 110,000 inspections and audits annually, serving over 13,000 buyers worldwide.  We are experts in the quality control industry, offering a wide range of cost-effective services, including product inspections, factory audits, laboratory testing, and product certification.  V-Trust operates in China and key export markets such as India, Vietnam, Malaysia, Thailand, Bangladesh, Pakistan, Cambodia, Indonesia, and Myanmar.  For more information, please contact us:Website: www.v-trust.com 

Power Tools Product Inspection

TUV Rheinland HK Ltd

Our company produces, tests and certifies&nbsp;a wide spectrum of&nbsp;electrical and electronic products including electrical household appliances, power tools, garden tools, audio and video equipments, office equipments, laser products, electronic components, and luminaries.&nbsp;With your best interests at heart,&nbsp;our products strictly&nbsp;comply&nbsp;with high quality and safety standards. 	 Excellent craftsmanship. 	 OEM is welcome.  

Electrical and Electronic Products

Kinglumi Co Ltd

We have the experience, capability, and R&amp;D resources to make any OEM/OEM integration a glowing success!Kinglumi is an extremely versatile turnkey manufacturer with the ability to bring your concepts and ideas into viable computing solutions. We work with individuals and companies at all stages of design and manufacture, from concept to finish, in a highly focused effort to bring industry level products and services to you.Once customer provides us with concept information and detailed specifications, we will notify them of the total cost for design, prototyping, and estimated cost per unit before the project begins. Kinglumi will work with customers until they are satisfied and all original design requirements are met, and the product performs exactly to customers' expectations. From productindustrialdesign and optics to the power supply and the wired/wireless control system platforms, Kinglumi's OEM/ODM services cover the full project life cycle.​To maximize product availability, Kinglumi employs all sectors of engineers: UI, Optic, Electronic Control, Software, Structure design. Our professional supply chain control and quality tracking system ensures on-stop high quality service. Kinglumi is an ISO9001, DALI(DiiA), SEDEX, and TUV certified company. We maintain stringent quality standards in our manufacturing processes, and ensure products go through rigorous quality checks at every stage of production.Products:1. Downlights: (special: Fire rated, insulation cover, low profile, ...)2. Spotlights3. Linear Light4. Control Gear: DALI-2, DALI DDT8, Zigbee, Bluetooth, Triac5. And others related to lighting and control

ODM / OEM Service of indoor LED Luminaries & Lighting Control

EnerRight Intelligent Limited

FeaturesTo combat the extreme weather caused by climate change today, the iPaintAI team independently developed multi-component and multi-scale nano-particle materials based on in-depth research on material science, optics and heat transfer principles. This achieves efficient solar reflection and mid-infrared emissivity, effectively inhibits heat absorption and promotes heat release, therebyenabling zero-energy refrigeration without the need for external power supply and refrigerant. EnerRight Intelligent Ltd. has obtained the exclusive agency for the sales of electricity-free cooling technology, also the intelligent prediction and control technology, providing customers with high-quality products and services.   Why choose us? Independent Research and Development by University Team A research team composed of professors from City University of Hong Kong ensures the reliability and safety of the productsMultiple Product Patents and Certifications The products have been certified to ISO 14001, 45001, and 9001 standards, meeting stringent mechanical property requirements, complying with multiple green product standards, ensuring their safety and harmlessness, and have received the Platinum rating in the Construction Industry Council (CIC) Green Product CertificationMultiple Successful Application Cases Central Market Historic Building Revitalisation Pilot ProjectArchitectural Services Department Harcourt Road Pilot ProjectInno TEC, Tung Chung

Electricity-free Cooling Technology - Coating Service

The Chinese University of Hong Kong

This is a smart bio-disc system for performing low-cost nucleic acid screening of tuberculosis (TB) from sputum samples. Low-cost point-of-care genotyping devices offering rapid screening of infectious disease such as TB, hence minimizing the chance of transmission, will lead to drastic cost savings on treatment. An important technological breakthrough of our &quot;Intelligent Bio-disc Platform&quot; (IBP) comes from the delivery of electrical power to the bio-disc.
 
  This has overcome a major bottleneck in existing lab-on-a-disc designs because many previously impossible yet necessary functionalities such as flow metering, sample heating and real-time signal detection, may now be realized with the supply of electricity. 
  The use of centrifugal actuation offers many advantages including low device complexity, limitless parallelization and availability of actuation force anywhere on the disc. 
 

Intelligent Bio-Disc Platform

Surface Mount Technology Ltd

 Our research and development service focuses on switching-mode power and micro controller. We produce standard-design products with high quality, function, and precision. We also engage in providing tailor-designed electronic solutions and upgrade of OEM products. 
 
  Structured systems for great efficiency. 
  With advanced facilities and equipments. 
 

Research and Development

ABO ELECTRONICS (SHENZHEN) CO LTD

100W~4000W, customized product design Service Scope ODM: Include Mechanical design, PCB Layout, Firmware development, APP development and OS development services. OEM: Include component sourcing and procurement, PCB Fabrication, PCB Assembly, Build of Box Assembly, Function Testing, Aging Testing, Packing and Logistic Services. DFM(Design For Manufacturing): Feed back customer of circuit layout optimization and component performance optimization requirements. DFP(Design For Purchasing): Recommend price competitive equivalent or better quality equivalent components. DFT(Design For Testing): Recommend price competitive testing solution for “high mix, low volume” projects or ATE(Auto-Testing-Equipment) solution for big volume projects.  Product Testing&amp; InspectionTest Development Services In-circuit Test Function Test Flying Probe Burn In &amp; Environment Stress Screening AOI Test Automated Test Platform Solutions X-Ray inspection PCBA ProductionLow Volume / High Mix Production High-Volume Production Customized Fulfillment Planning &amp; Options Total Quality ManagementISO 9001:2015Certified ISO 13485:2016Certified RoHS Compliant Compliant to IPC-A-610 Workmanship Standards UL, CE/FCC, CSAetcCertification Support Supply Chain ManagementDomestic &amp; International Sourcing Long-Term Collaborative Supplier Relationships Inventory Management Systems Strict Counterfeit Prevention Policy Kanban Manufacturing Programs 

Portable Power Station

PowerELab Limited

This free power supply design tool provides a virtual laboratory environment for users to wind and place every single turn of a transformer, and with the help of tens of thousands real modeled component on the market, user can simple pick and place the real component and stuff into the circuit, within a fraction of a second, our server will immediately return the result to the user. It is even faster than user turn off, replace a component and turn on a prototype in real environment, and more than that is no worry of getting explosion of the prototype on real bench.
 
  Free on-line switch mode power supply SMPS, circuit and transformer design, calculation, simulation software. 
  More than 100 circuits and topologies are available with real constructed transformer. 
  In real laboratory, engineers can feel the heat, measure the stress, wind real transformer or wait and see how long the unit getting burned. 
  With our seamless integration of different tool, e.g. thermal, MTBF, life, DVT, Waveform, etc., user can do the same things in PowerEsim virtual environment. 
  Design Verification Test (DVT) report and more. 
  A tool for engineers: choose a circuit topology, put in your power supply specifications and click. A complete design is ready. Optimize the design automatically or manually to produce the best product performance. 
  A tool for managers: fast response to RFQs, more control on product cost and better product quality control. Surprise your customers by the speed and details of your proposals with the help of ready to use reports from PowerEsim. 
  A tool for component Vendors: promote your components directly to product design engineers through PowerEsim. No more application notes needed. No more delay due to design mistakes. 
  A tool for Trainees: students and trainees learn quickly through PowerEsim. Simulated waveforms and analysis give real life demonstration. How to start? Go to www.powerEsim.com and get started. It is a free on-line tool. 
  Component loss analysis. 
  Essential waveforms. 
  Transformer winding design. 
  Input harmonics analysis. 
  Feedback loop analysis. 
  Thermal analysis. 
  MTBF prediction. 
 

Free Power Supply Design Tool

PowerELab provides design services for many power electronics products, including AC-DC power supply, 80+ server, 80+ ATX, LED driver, electronic ballast, EV charger, DC-AC inverter, battery charger, medical power supply, DC-DC converter, etc. We also developed a LLC and SR digital controller and a free online power supply design tool called PowerEsim.
 
  Patent licensing, consultancy and training. 
  Professional design house. 
 

Power Supply Design Service

PowerELab provides design services for many power electronics products, e.g.AC-DC power supply, 80+ server, 80+ ATX, LED driver, electronic ballast, EV charger, DC-AC inverter, battery charger, medical power supply, DC-DC converter, etc. patent licensing, consultancy and training. We also developed a LLC +SR digital controller and a free on-line power supply design tool PowerEsim.

Power Supply Product Development & Consultancy

Economic & Technological Cooperation Department of Daan

The Basic Information of Da&rsquo;an city, Jilin Province
Located in northwest of Jilin, the center of Songnen Plain, and alongside the Nenjiang river, bordering Inner Mongolia in the north and Heilongjiang province in the east, Da&rsquo;an city is praised as &ldquo;the pearl of Nenjiang river&rdquo;, which is also one of the top 100 national new energy counties, national best investment attracting counties and best developing potential counties. Da&rsquo;an city covers an area of 4879 square km, and has a population of 430,000. With a beautiful environment and ecology, Da&rsquo;an city is a junction city on the way of Changjitu great channel between China and Mongolia. It can deliver cargo to cities like Qiqihaer, Harbin and Heihe, and port cities in Japan, Korea and Russia. Changbai railway line and Tongrang line meet in Da&rsquo;an north station, and the city can be merged with Changchun City ever since the construction of Changbai high speed railway system. 
Speaking of the resources, Da&rsquo;an City has been proved to have an oil reserve of 250 million tons and natural gas of 10 billion cubic meters. In 2 subordinate industrial gardens, there is 1 natural gas station, with daily supply of 300,000 to 500,000 cubic meters, and a wind power plant of 1600 square km to be developed, which is the only wind power base with the capacity of over 10 million kw in Jilin Province, within which 5.25 million kw are listed in the national and provincial planning. In the nearby area, there is an Anbai hundred km new energy compound zone and a new energy absorption demonstration area, where the wind power can be utilized immediately.



Invest in Da'an

Allpower Industry (International) Limited

&#39;&#39;Passive LED Power&quot; technology has changed the perception that the lifetime of LED light modules must be longer than the power supply, and proves that &ldquo;Passive LED Power Supply&quot; can be used as the power supply for the LED Street Lighting. The LED street light system uses Passive LED Driver can meet the three requirements of &#39;&#39;Sustainable Lighting Technology&quot;: 	 High energy efficiency 	 Long product lifetime 	 Recyclability.  

Passive LED Power Service 

CAS Logistics Limited

 Prolis is a fully integrated logistics information system incorporating inventory control, warehousing control, initiating returns, order&nbsp;and inventory management, distribution center, administering sales and&nbsp;representative supply chain. Considering the perspectives from high quality logistics services providers, the basic business processes are brought together to form this powerful system. You can enjoy the simplification and automation of your supply chain management processes, which are vital for your business with your business partners and customers. 
 
  Professional design. 
  For inventory control, warehousing control, initiating returns, etc. 
  Easy to use. 
 

Logistics Information System

MET Laboratories Inc

 	 As a 3rd testing laboratory headquartered in Baltimore, Maryland State, MET is the 1st NRTL laboratory recognized by OSHA in year 1989, qualified to NRTL certify products in over 200 UL Standard Categories and can test to an additional 230+ standards for the US market. 	 For Canada, MET maintains a wide scope of SCC accreditation. 	 Our service products scope cover Lighting, Audio &amp; Video, ICT, HOUS, Power Supplies, Medical, Metering, Measurement, etc.  

Testing and Certification Services

PT KERRY NEX EXPRESS

 	 As Asia&rsquo;s premier logistics service provider, we are deeply vested in your success in both the region and the larger global market. 	 We understand the uniqueness of the Asian market and the complexity of global supply chains. 	 Our expertise extends beyond the mechanics of logistics into diverse business and cultural considerations that effect seamless movement of cargo. 	 When you partner with Kerry Logistics, you partner with a powerful network designed to help successfully drive your business at the global, regional and local level.  

My Sourcing