18v 4a dc power adapter EU/UK/US/AU universal 18 volt 4 amp 4000ma Power Supply input 100-240v DC 5.5x2.5 Power transformer - AliExpress
Amazon.com: SHNITPWR 18V 10A 180W Power Supply Adapter Transformer AC 110V 220V to DC 18 Volt 10amp 9A 8A 7A 6A 5A 1A Converter LED Driver 3 Output Ports for LED Light