DC-DC XL6009 Digital Boost Step Up Power Supply Module Adjustable 4.5 - 32V to 5-52V Step-up Voltage Regulator With LED Voltmeter HKD17.65
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XL6009升压板3V9V12V24V32V升5-35V带电压表DC可调数显升压模块 淘宝价 ¥10.50
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