The 30 count, LED Multi-Color Bud Lights is a set of 30 red, green, blue, and yellow bulbs on a silver cord. The light strand is deal to use on wreaths, mirrors, or draped over a shelf. The lights require 2 AA Batteries (not included) to operate and features an on/off and timer function that runs 8 hours on/16 hours off. The light strand is intended for indoor use only. The strand has four inches of space between each bulb and measures 9.5' in length.