Features 100% brand new! 5~24V 2.1x5.5mm male + female DC connector power supply jack adapter. Simply and professional appearance for power cabling. Premium screw terminals with heavy duty inner wire leads, very simple and safe. Widely used for 5050/3528/5630 LED strip lights, CCTV security camera, DVR, car rearview monitor system, video, time-saving and more securer cable connection, etc. No electrical tap, no splicing, no crimping, no need to solder, just plug and apply, easy to install. Specifications External diameter of the plug(male/female): 5.5mm Internal diameter of the plug(male/female): 2.1mm Dimension(approx.): Male 38.1x13.2mm(L*W) Female 35.4x14.5mm(L*W) Color: Black + green