When only opaque will do, let these red opaque Christmas lights bring warmth to your holiday display. This light set has fade resistant opaque C9 bulbs spaced 12 inches apart on 25 feet of green wire. UL listed for indoor/outdoor use, this light string has a lead and tail length of 6 inches each. Multiple sets can be safely connected with the male to female connections. This holiday season make your home warm and inviting with the traditional look of incandescent lighting.