what does a burned out christmas light look like

I know what a burned out Christmas light looks like. It's a light bulb that has stopped working because it has gotten too hot or there's some kind of fault in the wiring. When a Christmas light burns out, it stops producing light and becomes dark. It can be really frustrating when this happens, because it means that the whole string of lights might not work anymore. But luckily, you can easily replace the burned out light bulb with a new one and get your Christmas lights shining bright again!