This is one of the most versatile, inexpensive, and interesting ways to spruce up an area with light. It can be used indoors or outdoors and can be mounted with small clear plastic clips or simply set in behind crown molding to add a luminous glow to a room. This set is a lovely blue in color and contains 18' of 1/2" (13mm) diameter rope light, encasing 216 bulbs. The ends can be connected continuously up to 300' in total length. This set features a whopping 10,000 hour bulb life, a safety fuse plug, and 18 tie clips as well as mounting accessory clips. This set has been UL listed.