noooooooooooooooooooooo .
Of course a set of Xmas lights is a light source. Any electric light is a light source.
Usually, strings of Christmas lights light up a Christmas Tree. Nowadays, the lights are more likely to be LEDs.
Christmas light hangers are used to secure Christmas lights to the Christmas tree. The hangers keep the lights from falling or sagging around the tree.
They represent Jesus as the light of the world.
Miniature Christmas tree lights are typically wired in parallel. This means that each light has its own individual connection to the power source, allowing the other lights to remain lit if one bulb burns out. The wires are connected to a central power source with fuses to protect against overloading.
Candles.
People used candles to light Christmas trees before there were electric lights.
The average number of Christmas lights on a Christmas tree can vary depending on the size and personal preference. However, a common estimate is around 100 lights per vertical foot of tree height. So, for a 6-foot tree, you might expect around 600 lights.
A christmas tree light checker works by checking the lights and bulbs in the line. It searches for a short or abnormality in current through out the wire, and reveals where it would be.
Typically, lights are placed on the Christmas tree first before adding decorations. This helps to evenly distribute the light around the tree and makes it easier to see where to place the ornaments.
"O, Tannenbaum" (O, Christmas Tree)
LightKeeper Pro Mini Light TesterWorks on mini light sets, prelit Christmas trees, lighted wire figures, icicle lights, etc.http://www.bettyschristmashouse.com/lights/mini_replace.htm#lightkeeper
The Rockefeller Christmas Tree typically has around 50,000 LED lights.