Christmas tree lights are either stacked or end to end, also called string to string. Check the boxes of lights before you buy to make sure they're all compatible. You can join more strands with stacked plugs than you can with end-to-end type plugs. Be sure to check the box for the manufacturer's recommendations, however. Usually you can string together three 100-light strands or six 50-light strands.
For a fresh tree
Plan for three 100-light sets per tree foot.
For an artificial tree
Use 50-light strands: the 100-light strands are two 50-light strands wired together, and the 50-light strands are easier to work with as you wrap the tree branches. In addition, the 50-light sets are less likely to burn out or have electrical problems.
For subdued lighting, use about 12 boxes for a 6-foot tree and about 20 boxes for an 8-foot tree. For moderate lighting, use 20 boxes for a 6-foot tree and 30 boxes for an 8-foot tree. For showcase lighting, use 40 boxes and 80 boxes, respectively.
For subdued lighting, use about 12 boxes for a 6-foot tree and about 20 boxes for an 8-foot tree. For moderate lighting, use 20 boxes for a 6-foot tree and 30 boxes for an 8-foot tree. For showcase lighting, use 40 boxes and 80 boxes, respectively.
