Ironsmith Lighting Products 60 Watt Halogen Lamp Transformer - 20W to 60 Watt Max Output, Halogen, Xenon, Krypton Type Light Bulbs Support - Not for LED Light - Amazon.com
40 Watt Low Voltage Xenon Transformer 40W in Input 120V to Output 12V Halogen Light Bulb
12V Halogen Transformer, Electronic Transformer 12v 105 W LED Waterproof Supply IP67, 220-240V AC to 12V AC Transformer Dimmable LED Driver for Halogen Lights, LED Power - Amazon.com