How to fix christmas tree lights half out?

Using your fingernail or a pencil, flick each light bulb carefully while the strand is still plugged in. If it flickers and goes out again, the problem is a loose bulb. Tighten the bulb gently and checked to see if the rest of the strand lit up. read more

This means the lights are designed to last one to three seasons, depending on your usage. Newer style LED (light-emitting diode) lights are the exception. They can last 10 times longer than traditional lights. Required Tools for this Project. The only tool you’ll need is a bulb tester in order to know how to fix Christmas lights. read more

Half of the string of LED Christmas lights doesn't light up. A bit of a low-tech, although seasonal, question for you: I have a bunch of Noma LED Christmas light strings, each with 70 LEDs. read more

There’s a simple way to solve the problem and how to fix Christmas lights. First, slide back the plastic covering on the plug to check the fuse (Photo 1). Some strings have more than one fuse, in which case they’ll be next to each other. read more