2PCS LM317 Adjustable Voltage Linear Regulator Power Supply LM317 DC-DC 4.2-40V To 1.2-37V Step Down Buck Converter Board Module

2PCS LM317 Adjustable Voltage Linear Regulator Power Supply LM317 DC-DC 4.2-40V To 1.2-37V Step Down Buck Converter Board Module
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sku: 32811517240
$1.08
Shipping from: China
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