CrazyDeal 2.1 x 5.5mm DC Power Female Plug Jack Adapter Connector Plug for CCTV LED Light genial comfortable Simply & Professional appearance for power cabling No electrical tap, No splicing, no crimping, but only a small screw driver Easier for camera and LED light strip installation, save time and more securer cable connection 5.5mm x 2.1mm Female power plug connector Internal diameter of the plug: 2.1mm External diameter of the plug: 5.5mm Size: 3.5cm x 1.4cm x 1.2cm - 1.37inch x 0.55inch x 0.47inch