Amazon.com: [UL Certified] AC to DC 6V 1A Power Supply Adapter, Plug 5.5mm x 2.1mm, UL Listed FCC : Electronics
Amazon.com: 6V 1A Power Supply, COOLM AC 100-240V to DC 6V 1A Power Adapter 6W Chrager 5.5 x 2.5mm/2.1mm for Trash Can Arm Blood Pressure Monitor Doorbell Alarm AM/FM Replacement 6V 500mA
100% New 6v1a Ac 100v-240v Converter Adapter Dc 6v 1a 1000ma Power Supply Eu Plug Dc 5.5mm X 2.1mm Free Post Shipping - Ac/dc Adapters - AliExpress
Amazon.com: TTODDE AC/DC Adapter 6V 2A 1.5A 1A 0.5A Adapter Power Supply 6V Power Cord 12W 100-240V 50-60Hz with 3.5 x 1.35mm/5.5 x 2.5mm DC Plug Compatible 6 Volt 200ma 300ma 500ma