Product description Modern and creative decorative string lights can not only be used as lighting, but also the perfect decoration for indoor and outdoor parties, creating a romantic atmosphere, amazing scenery, and enjoy happy time with family and friends. The Brightown patio string lights are made of high quality material and waterproof technology, safe, flexible and practical, to meet the lighting and decoration needs of different occasions. Replacement Edison Bulbs G40 clear bulbs made of thickened glass for more durability. All bulbs are tested over 48 hours before packing. A light bulb that goes out does not affect other lighting bulb Connectable String Light Two prong connector plug on one side (male) and open connected plug on the other (female) allows for 3 strands to be connected Spare Fuse Electric plug in string lights either with a built-in spare fuse(125V/5A) for easy replacement UL List