This installation accessories set is ONLY compatible with 10mm width 3-pin CCT COB LED Strip lights(Not applicable to 8mm/5mm board width and RGB COB LED Strip Lights).The transparent middle connector will not block the light.ONLY compatible with 10mm 3-pin CCT COB strip lights, other sizes are not applicable Using this CCT COB LED strip extension kit you can extend your strip light's length to the power supply or connector, eliminating the issue of limited space. These accessories let you extend and connect light strips, extend the connection between the strip light and controller/power supply, and let you achieve a corner connection 4pcs of transparent gapless solderless connectors,4pcs of Dual End jumpers with 5.5in/14cm 22AWG wire,2pcs strip to DC female plug connectors with 5.5in/14cm 22AWG extension wire(Transparent connection ends on each lead are removable and individually used as transparent gapless strip to wire connectors) this CCT COB connector kit lets you DIY for a safe and easy job that will save you time and money.The advantage of the upgraded package is that it can be reset repeatedly and the installation is more convenient Stable connection for durable daily use.IMPORTANT NOTE:Before pressing the connection, please check whether the positive and Material: Metal+ABS Color as shown Package Contents: 2 set led strip connectors