- Inspect Christmas lights before stringing them on the tree. Damaged cords or light sockets could short out or overheat, and these strands should be replaced.
- New types of Christmas lights--such as those with LED bulbs--burn cooler than older varieties. Consider replacing lights you've had for a long time.
- Underwriters Laboratories (UL) approves Christmas lights that have been tested for safety. Its seal should appear on a tag wrapped around the lights' cord.
- Do not connect more than three sets of lights together, as this can overload the circuit.
- Never leave Christmas lights unattended.
- If you are using a live tree, make sure it is watered properly. Dry trees will catch fire much more quickly if your lights malfunction.













