With tech -line extension, don't worry about the power supply -with extension cords you can always reach the socket. If you want more light in the home and need a little more length of the light chains, then it's Sirius Tech-Line extension cord you need. It is perfect for those who want more light in their home and need to extend its light chains. This extension cord is 10 m. All tech-line accessories are only suitable for the tech-line series.