White Ball Berry 40 Count LED String Lights are a strand of 40, white LED lights on a long silver wire. Lights includes eight built-in settings (combination, in wave, sequential, slo glo, chasing/flash, slow fade, twinkle/flash, steady on) and includes a remote control to conveniently switch to the preferred setting or on/off. Lights are battery-operated and require 3 AA batteries (not included) to operate. Lights are great for dressing up a Christmas tree, the wall of a bedroom, or a vanity mirror, and are intended for indoor use.