How do you put lights on a Christmas tree so it glows?
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First, put on the bottom layer of branches. Then, wrap each branch– going up and down the branch with the lights. If your branches are attached, just fold down the branches layer by layer. Then, put on the next layer of branches and add the lights using the same technique I used on the first layer of branches.
What do you do if your Christmas tree won’t light up?
This often occurs through rough handling or improper storage of a tree. Look to find the loose bulb, check the wires to ensure they are properly aligned, and secure the bulb tightly within the socket. This should fix the issue. If a short has occurred, the light string is usually not repairable.
How do you light a tree up and down?

String lights by starting the string at the bottom of the tree and pulling it up to the top, then back down like a mountain. Continue to zigzag up and down the tree. Once you’ve wrapped the tree, tuck the strands farther in on the branches to make room for ornaments.
How do you fix partially lit Christmas lights?
Remove the first bulb that is not working in the half strain of lights. Take the bulb you just removed and replace it, then remove the second bulb in the string and repeat this process until you have taken out each bulb and replaced it with another bulb in the entire strand of lights.

How do I know if my Christmas light fuse is blown?
Check the Fuses You can sometimes tell by sight if a fuse has blown; the metal filament inside the glass cylinder will have a break in it. Learning how to change a fuse in Christmas lights is simple: Open the sliding compartment door and remove the fuse(s).
Do you start at the top or bottom when putting lights on a Christmas tree?
top
Plug in the lights to make sure all the bulbs are working. Starting at the top of the tree, intertwine the lights on top of and under branches. Work your way down and around the tree, hanging lights in the back as well. When you reach the bottom, hide any extra lights behind the tree.