Easiest Way To Test Christmas Lights

There s a way to test and fix the entire string of miniature lights without testing each bulb individually.

Easiest way to test christmas lights.

Usually changing a problem bulb or tightening it will fix the entire strand. Looks like it will make hanging outdoor lights on the house really easy. Light testers search for the point in the string where the voltage changes between a good bulb with current flowing and a problem area with minimal current. Some christmas light testers work by having you slide each christmas light bulb through a hole.

How to find a bad bulb in christmas lights. It s a strip of trim you affix to your house. Examine the plastic closely on the side of this box and in between the prongs for a cover you can slide or pry open. From the string and move it along the cord until it stops beeping at the defective bulb.

A string of christmas lights typically has one or two tiny fuses in the plastic box attached to the prongs. Press down the black button hold the tip about 1 2 in. These often get stuck so you may need to use some force. Begin at one end of the darkened string of christmas lights and carefully remove the first bulb.

Step 2 locate the two wires on the bottom of the bulb and touch a probe to each wire ensuring that the probes do not touch each other or more than one wire. Second test the christmas light bulbs with an inexpensive tester available where holiday lights are sold and online. Open the fuse case. Then you attach the lights on a slide piece with clips.

Check the fuse and wiring in the plug. Make sure that the cathode and anode are not touching each other during this test which may prevent the current from. Unpack your bulbs and plug them in to test they work before you put them on the tree. Test the bulbs start at the plug end.

When they don t work 2. You can see how to wire a plug and test cables here 3. The black and red probes should also not be touching each other during the test.