These stunning stellar glass stars string lights will create a sparkling ambience both indoors and out whaterver time of yearr they are designed for use all year long but would look great at christmas as a decoration with the minimum fuss to maintain they are battery powered not included and have an in built timer switching them on for 4 hours and off for 20 r 10 glass starsr stunning designr 28m total lengthr auto timerr batteries requiredr requires 4x aa batteries