Adding lights to trees can significantly elevate the beauty of your property. For smaller trees, labor costs typically range from $75 to $150, depending on the desired light coverage, while larger trees can range from $300 to $2,000 in labor. The cost of lights will vary based on how fully you want the tree illuminated. Smaller trees, typically between 6 to 8 feet, tend to look more elegant and are more cost-effective. For trees that require lifts or specialized machinery for installation, labor costs can range anywhere from $2,000 to $15,000, depending on the complexity of the project.