1.You can contact the customer service. for any question regarding the product.
2.Ask the question in English to get answer faster.
3.Keep your question short and to the point.
دفع آمن مضمون

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I put it off for a long time, but I finally decided to build a regulated power supply. I bought more if I wanted to build more. Now I still have to find free time to build.
The packaging was not perfect, one potentiometer has bent leads, but otherwise it is fine. Operational amplifiers are not labeled, maybe they are clones.
Naročeno 5Pcs Original Hiland 0-30V 2mA - 3A nastavljiv DC reguliran napajalnik DIY Kit pregledano 5 kos popolno v redu.Čaka
me spajkanje in preizkus.
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
A part of the QA has been auto-translated.