Unless you're a Romulan, you'll love these Star Trek string lights. Each light is encased in a 2.5 inch by 1.5 inch galaxy blue plastic Starfleet patch emblazoned with the likeness of Spock himself giving the Vulcan salute. There are ten lights to a strand, each spaced 12 inches apart with a 30 inch plug-in lead. The strand is UL approved for indoor and outdoor use on Earth and is recognized by the Federation as safe in most galactic star systems.