Decorative LED Rope Light - 18'; Applications include 12 VDC marine and recreational vehicles; Voltage Range 11-24 VDC; 4.17 cm space between bulbs; 18' x 3/8"dia.; For indoor/outdoor use & comes with car plug adaptor. Warm White. Car Plug Adaptor w/ 33' waterproof wire. (Car Plug Adaptor is for indoor only).