Pre lit Christmas trees usually last for a total of four to five years. However, the lifespan of the tree depends on the care and maintenance it receives. To ensure your pre lit Christmas tree stays lit for up to five years, keep it in a cool, dry place and make sure to inspect the light strands for any frays or frayed wires. Additionally, replace the bulbs if necessary. With proper care and maintenance, your pre lit Christmas tree can last for several holiday seasons to come!