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Lm2596 Buck Step-down Power Converter Module DC 4.0 40 to 1.3-37v LED Voltmeter

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4.3average based on 29 product ratings
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  • Get it by Thu, Jun 13 - Thu, Jul 25 from Hongkong, Hong Kong
Press and hold the switch for more than 1 second and less than 4 seconds to release it. And keep it after the. than 2 seconds. (With this. After the comparison value at the output end, press and hold the button for more. ).
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Lm2596 Buck Step-down Power Converter Module DC 4.0 40 to 1.3-37v LED Voltmeter

Brand new: lowest price

$2.44

Free Shipping