Are C7 and C9 bulbs the same?

Great question, and we hear it several times a season. Short Answer: No, they are very similar but are different sizes. Longer Answer: C7 bulbs are shorter with smaller diameters than C9s. Both are installed in 18 AWG traditional Christmas light cords. Many of us remember this style of lighting from when we were kids.… Read more… Are C7 and C9 bulbs the same?