Real talk - what is the difference between a c7 and c9 bulb?
If you've ever found yourself staring at a box of Christmas lights wondering what is the difference between a c7 and c9 bulb, you're definitely not the only one. It usually happens right about the time you're standing in a hardware store aisle or scrolling through a messy garage bin, trying to remember which ones fit the strings you already have. At first glance, they both just look like those classic, pointy "vintage" bulbs our parents and grandparents used, but there are actually some pretty big differences that go beyond just how they look on a tree. ...