The Sirius Tech-Line Cluster starter set has a total of 180 LED lights, where the small LED lights sit close to each other and create a cluster of light. The Sirius Tech-Line Cluster starter kit provides a warm light cutter and you can hang the light chain in windows, housewife, balconies, carports, fences and trees. Sirius Tech-Line Ultra Cluster Start kits can be used both outdoors and indoors. Like most Sirius products, Tech-Line Ultra Cluster starter kit can be operated with Sirius remote control. The remote control is not included in this product but can be acquired separately (art. 1000-SIR). All tech-line accessories are only suitable for the tech-line series.