You can see how to wire a plug and test cables here 3.
Easiest way to test christmas lights.
Open the fuse case.
Make sure that the cathode and anode are not touching each other during this test which may prevent the current from.
Check the fuse and wiring in the plug.
Testing the connections and wiring in fairy lights 1.
A string of christmas lights typically has one or two tiny fuses in the plastic box attached to the prongs.
Then you attach the lights on a slide piece with clips.
Making the connections should cause the led to light up.
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.
Test the bulbs start at the plug end.
Looks like it will make hanging outdoor lights on the house really easy.
Christmas light testers the most convenient way to test for faulty bulbs in a light string is through the use of a light tester.
Unpack your bulbs and plug them in to test they work before you put them on the tree.
Second test the christmas light bulbs with an inexpensive tester available where holiday lights are sold and online.
The black and red probes should also not be touching each other during the test.
Examine the plastic closely on the side of this box and in between the prongs for a cover you can slide or pry open.
There s a way to test and fix the entire string of miniature lights without testing each bulb individually.
When they don t work 2.
Some christmas light testers work by having you slide each christmas light bulb through a hole.
Usually changing a problem bulb or tightening it will fix the entire strand.
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.
It s a strip of trim you affix to your house.