Upgraded 8 Modes White Christmas Lights The icicle lights for outside have 8 selections of light pattern: 1.Combination 2.In Waves 3.Sequential 4.Slo-Glo 5.Chasing/Flash 6.Slow Fade 7.Twinkle/Flash 8.Steady On. Different lighting effects are controlled by the button on the plug. These beautiful and vibrant outdoor Christmas lights will bring you a lot of festive atmosphere. Low Voltage & UL CertificationThe output voltage of the outdoor Christmas lights is 29V, the power of adapter is 6W with UL certified, energy saving and safe to use. The twinkle lights will not overheat even after working for a long time and safe to touch.