PACKAGE CONTENT - DC Power 5.5mm x 2.5mm 4A 30cm Length Barrel Male Plug Connector Pigtail Specification - Wire length: 30cm/11.81' ; Interface specifications: 5.5 * 2.5 ; Core specifications: 2 * 0.75mm2 ; Wire outer diameter: 4mm ;Rated current: 4A ADVANTAGE - pure copper high-quality wire core, strong electrical conductivity APPLICATION - Used to monitor high-power power supply or electronic equipment such as LED. NOTED - Please make sure that the power cord DC plug matches your device before purchase.