Amazon.com: CHANZON UL Wires 9v Battery Connector Plug Arduino Battery Power Leather Clip with 2.1mm x 5.5mm Male 5 Pack Jack T-Type for Arduino LED Strip : Electronics
Amazon.com: CHANZON UL Wires 20pcs 9v Battery Clip Connector T Connector with Leads Wires Plug Pigtail Harness of 10pairs 9 Volt Leather Kit for Arduino LED Strip Terminal : Electronics
Cable power Arduino for 9V batteries - Boutique Semageek