First, let me say that there is no exact number for the lights that should go on a Christmas tree. This is due to the variability in how bright someone wants the tree, how closely or far apart they want the differing level of lights to be, how tightly or loosely they place the strands, and the type of tree itself.
The following recommendations are very loose places to start and are generalized for the average Christmas tree.
| Tree Height | Lights |
| 4′ | 150 |
| 6′ | 300 |
| 8′ | 550 |
| 10′ | 700 |
| 12′ | 1,000 |
| 15′ | 1,250 |
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Hope this helps with your next Christmas tree!