Amazon.com: DC 5V 20A Power Supply 5 Volt 100W AC110/230V Transformer Converter for LED Strip, LED Display, 3D Printer (5V 20A) : Electronics
Amazon.com: Power Transformer AC 220V to Dual AC 12V Step Down Transformer Module for 2.1 Channel Amplifier Board,12V 30W(AC 220V to Dual AC 12V) : Electronics
Dry Type Small Electrical 230v 12v 110v Transformer 220 Volt 24 Volt Transformer: Amazon.com: Industrial & Scientific
Amazon.com: Yinleader 500W Voltage Transformer Power Converter(220V to 110V, 110V to 220V) Step Up/Down Converter 110/120 Volt - 220/240 Volt : Electronics
Amazon.com: Merrychef 30Z1413 230V 50Hz Transformer : Home & Kitchen
STANCOR P-8575 Voltage Transformer 24V-CT 115/230V-AC: Amazon.com: Industrial & Scientific
Acme Electric T181054 Open Core and Coil Industrial Control Transformer, 240V x 480V, 230V x 460V, 220V x 440V Primary Volts, 120V/115V/110V Secondary Volts, 0.5 kVA: Electronic Transformers: Amazon.com: Industrial & Scientific