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58% OFF 10Pcs Mini DC Adjustable Power Supply Buck Module Step Down Module US$4.99 US$11.99 View It

Overall:

Dewman 18/02/2017

I must have gotten a bad batch, Funny thing is the back marked both outputs as negative and the volt meter confirms it. but the POT doesn't change the voltage, even under load.

Comments (2)

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Banggood Dear customer, For this problem please feel free to contact with our customer service. Best regards
23/05/2024

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maximus5 You are using 1 18650 cell,at max 4.2 volts,where the ad CLEARLY states "Input voltage: DC 4.75V-23V"/// So,try 2 cells for a change (8 volts)
Reply 18/09/2018

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