WO-DC-DC 4.5-40V Step Down LED Volt Meterr USB Voltage Converter Buck Module 5V/2A

High-concerned chemical：None Connection Method：Wired Connection Voltage：50V AC / 75V DC and above Origin：Mainland China Specification 1：Step Down Converter Specification 2：4.540V Step Down Specification 3：USB Voltage Converter Specification 4：Converter Buck Module Specification 5：Volt Meterr

High-concerned chemical: None Connection Method: Wired Connection Voltage: 50V AC / 75V DC and above Origin: Mainland China Specification 1: Step Down Converter Specification 2: 4.540V Step Down Specification 3: USB Voltage Converter Specification 4: Converter Buck Module Specification 5: Volt Meterr