Amazon.com: OhmKat Video Doorbell Power Supply - Compatible Ring Video Doorbell PRO - 230V Type-C EU Plug - Needs No Existing Wiring - Transformer, Adapter, Power Kit & Supply All in One :
Amazon.com: Krieger 150 Watts Voltage Transformer, 110/120V to 220/240 Volts Step Up Step Down Voltage Converter with AC Outlets, MET Approved Under UL & CSA : Electronics
Star 2E-05-07-0350 Transformer 230V/10V 6Va: Amazon.com: Industrial & Scientific
Mophorn Variable Transformer 2000VA 110V 60Hz Varic 0-230 Volt Adjustable Output Variable AC Voltage Regulator with Universal Plug Hole: Amazon.com: Industrial & Scientific
Amazon.com: Patioer 1000W Voltage Converter Transformer(230V to 110V, 110V to 230V), Step Up/Down Converter 110/120 Volt - 220V/230V/240V Volt (1000W) : Electronics
Halogen Light Power Supply Converter Electronic 110V 160W LED Magnetic Transformer Adapter - - Amazon.com
Amazon.com: Anbull Voltage Converter 1000 Watt Voltage Transformer, 220V / 230V / 240 Volt to 110V / 120 Volt or 110V / 120 Volt to 220V / 230V / 240 Volt, Heavy Duty Step Up & Down Transformer Converter : Electronics
Amazon.com: Patioer 1000W Voltage Converter Transformer(230V to 110V, 110V to 230V), Step Up/Down Converter 110/120 Volt - 220V/230V/240V Volt (1000W) : Electronics
Amazon.com: Bunn 27253.0001 Transformer, 80Va, 115/230V-24V : Home & Kitchen
Amazon.com: Yinleader Step Up & Step Down Voltage Transformer Power Converter,Convert 220V to 110V OR 110V to 220V in Your Countries (800W) : Electronics