This is a set of 150 special dual LED (Light Emitting Diodes) string lights. These are special as within each bulb is set 2 different coloured LED’s so that they can all be either white or blue making these a two sets in one solution. The 5 function control unit attached to the string gives the colour options or assorted. They can be hung indoors in a window for example. The use of LED’s mean that bulbs do not need to be replaced and they also use less energy than traditional bulbs and give a brighter light too. The set also has a generous power cable for flexibility of placement.