It's that time of the year again, a lot of household put up Christmas lights on every part of their house. It can be frustrating when one part of the light set fails to light up. We have this lawn reindeer decoration which consists of three moving reindeers and a sleigh and every year, dh and I had to trouble shoot why one part is not lighting up. This year, I don't want that headache again so I purchased two strings of lights to use on the reindeers if it does not work.

Here are some tips on how to test your Christmas lights (from EHow.com)
- Inspect every string for damage to the insulation on the wire or smashed light sockets.
- Plug each string into an electrical socket individually.
- Replace any bulbs that don't light up.
- Make sure all of the bulbs are firmly fastened in their sockets.
- Check to see if the string has a fuse (it will be at the end nearest the plug); try replacing the fuse if the entire string is out.
- Buy a bulb tester and use it to check any lights you suspect are burned out.
If you plan to replace your Christmas lights, consider getting the ones with LEDs. These use up less energy and are less likely to burn out.