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33% OFF Placa de Expansão de Nível Alto de 1 Canal para Sinal TTL de 5-12V Rele 5V (Conjunto com 5 unidades) 7,37€ 11,06€ View It

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masmarupor 23/05/2018

I received the 5 relays, but only 2 out of 5 work, 3 do not work !!!https://youtu.be/uNpmvIw3CBI after careful checking I discovered the problem. the 3 relays that do not work mount 2ty type transistors, while those that work mount j3y type transistors. in fact j3y is npn, 2ty is pnp. report to the production line thank you.

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Banggood Dear customer, Thank you for placing order in Banggood. We are sorry for any inconvenience caused by our product. About this product's problem, our customer services will connect to you within 24 hours and they will give you a solution. Please take notice of your email box. We sincerely hope the problem will be solved fast. Best regards, Banggood team
24/05/2024

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