This was the first mason jar lamp I made. You can buy these flame-like light bulbs with a small base to fit inside of this fake candle base. There's an electrical holder already wired with a cord that fits inside. Our local hardware store had these parts. I had to carefully cut out a side hole at the bottom to put the cord through. Otherwise it would go through a hold in the lid then a hole in the glass jar. Not what I wanted to do. I want to keep the jar whole. It's an antique and I love all its bubbles!