Mainstays 10ct 7.4ft Multi-color Balloon Shape Shatterproof Plastic Bulbs and Black Wire Tear Drop String Lights. This product have pass UL certificate for outdoor and indoor use. Lighted length 7.4 ft (2.3 m). Color tempreture: 2700 kelvin for warm white light. This strand can be connected up to 20 sets (202 ft). Led multicolor plastic balloon shape bulbs. Recommending to use for Wedding, Birthday Party and all kinds of Festival.