This installation accessories set is ONLY compatible with 10mm width COB LED Strip lights( to 8 mm/5mm COB Strip).The transparent gapless connector not block the light.Only compatible with 10mm wide COB strips, other sizes are Using this 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 middle connectors,3pcs of Dual End with 5.5in/14cm 22AWG UL-Listed extension wire,2pc of Single End to 4 Pins Plug with 5.5in/14cm 22AWG UL-Listed extension wire UPGRADED version kit,simple to install and no welding needed, this cob connector kit lets you DIY for a safe and easy job that time and money.The advantage of the upgraded package is that it can be reset repeatedly and the installation is more convenient(The transparent connectors on the 4-pin wires are removable and used individually as connectors) Stable connection for daily use.IMPORTANT NOTE:Before pressing the connection, please check whether the positive and negative poles of the light strip are consistent with the other end Colour:As shown Material:plastic Package Contents: 1set x cob led strip Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.