Adjustable LM317 Voltage Linear Regulator Power Supply LM317 DC-DC 4.2-40V To 1.2-37V Step Down Buck Converter Board Module XF30
![Adjustable LM317 Voltage Linear Regulator Power Supply LM317 DC-DC 4.2-40V To 1.2-37V Step Down Buck Converter Board Module XF30](http://ae01.alicdn.com/kf/HTB1VrXeXffsK1RjSszbq6AqBXXa1.jpg)
sku: 32919609961
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$1.09
Shipping from: China
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