A power supply is a device that converts other forms of energy into electrical energy. The power source is based on the principle of "magneto generated electricity", which is generated by renewable energy sources such as water power, wind power, ocean tides, dam water pressure difference, solar energy, and burning coal, oil residue, etc. Common power sources are dry batteries (DC) and household 110V-220V AC power sources. High quality power supplies generally have certification marks from multiple countries such as FCC, American UL, and Great Wall of China. These certifications are professional standards established by certification agencies for power supplies based on industry technical specifications, including production processes, electromagnetic interference, safety protection, etc. Products that meet certain indicators can only use certification marks on packaging and product surfaces after passing the application for certification, which has a certain level of authority
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China