LEDs are a fabulous way to decorate all around your house & garden for the Christmas season, whether you're wrapping them around a tree trunk outdoors or wrapping them around a bannister indoors If you feel you want to add on to this set you can keep adding up to 8 sets & ultimately have 80 metres & 800 lights! Each set of connectable lights is fitted with a watertight threaded connector end Additional sets are added by simply screwing the end of one set on to another Features 100 electric blue static lights Connectable up to 1500 LEDs Light Function: Static Bulb Spacing: 4"/10cm 3m between plug & first LED, 10m between first LED & last LED