This extension cable is specially designed for use with Premier Christmas string lights, suitable for UK Plug. Its long length of 10M, the string light extension cable enables you to add and increase your lights display to your porch, garden, pergola, patio, roof, or any other long length distance area. The cable is an end to end connector 2 pin so please check your connection before ordering The extension is made of high-quality insulating material. Designed to withstand the wear and tear during any time of the year. It is waterproof so you don#t need to worry about the wires when it rains. This makes the extension suitable for both indoor and outdoor use all year round. To ensure you maintain the brightness of your lights, it is recommended that you only connect a maximum of 2 sets of extensions together.