The COLBOR VM3 includes a V-mount adapter and a D-Tap to XLR V-mount battery cable. It is designed for quick-release and attaching the V-Mount battery on the COLBOR CL220 and CL330 video and photography lights. It is used with the COLBOR 3.58" NATO extension bar, which is included in the package of the CL220 & CL330. Its lightweight and portable design gives you an easy-carry powering option with V-Mount battery.