AC-DC 12V 300mA 5V 700mA 3.5W Isolated Switch Power Supply Module Buck Converter Step Down Module 220V to 5V/12V - AliExpress
AC-DC 12V 300mA Power Supply Step Down Converter Step Down Module 220V to 12V - Walmart.com
Steren 300mA 3-12 Volt Universal AC Adapter - Steren Solutions
Amazon.com: IIVVERR DC 12V 300mA Light Power Driver Module for 3 x 2W MR16 LED Lamp (DC 12V 300mA Light Power Driver Module para 3 x 2W MR16 LED Lamp : Everything Else
AC-DC 12V 300mA Power Supply Step Down Converter Step Down Module 220V to 12V - Walmart.com
Hechen solenoid electromagnet HS-0530B DC 12V 300mA 5N 10mm stroke open frame – Heschen
AC 110V-220V to DC 12V 300MA AC-DC Power Module Converter Adapter Step Down Power Supply Module for Thermostat - AliExpress
Amazon.com: Acxico 5Pcs 12V 300mA Board Module Mini AC-DC 110V 120V 220V 230V to 5V 12V Converter Board Module Power Supply : Electronics