The Vintage Amico C-7 Christmas Lights are a charming set of 15 multicolor lights designed for indoor use. These string lights are corded electric with a voltage of 120V and feature incandescent bulbs in the C7 shape code. Made by the brand Amico in the United States during the 1950s, these original lights come in their original box and are perfect for adding a nostalgic touch to your holiday decor. Has green & red cord. The box is beat up and stained. There are 13 extra bulbs (see photo). Not sure if they work or if they are original to the set.