Varistor export to the United States for UL certification standards UL 1449.
Varistor export to the United States requires UL certification after entering the 21st century, consumers' concepts are constantly changing. Price is not the only consideration. Certain brand identification is required to ensure confidence in use safety. Products with reliable UL certification marks represent a series of in-depth evaluations by UL professional engineers, which can bring consumer confidence.
Varistor for UL certification process
1. According to UL standards, evaluate which UL standards the product should meet;
2. Sign a contract and quotation certification fee;
3. Pay and submit information as required: BOM, circuit diagram, model, business license;
4. The application enterprise sends samples accredited Testing Laboratory test;
5. Pass UL test and issue draft test report;
6. If the factory has not done UL certification before, you need to do the first factory inspection;
7. The first factory inspection passed. UL issued UL mark use authorization, UL certification completed.
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