Test the bulbs start at the plug end.
Best way to test christmas tree lights.
Testing the connections and wiring in fairy lights 1.
Second test the christmas light bulbs with an inexpensive tester available where holiday lights are sold and online.
Remove a bulb from an unlit section plug the empty socket into the connector plug the string into an electric outlet then squeeze the trigger until the lights turn on.
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.
You ll get a bright colorful look by adding one strand per foot of tree.
Christmas light testers the most convenient way to test for faulty bulbs in a light string is through the use of a light tester.
Now before you drape all those lights on your artificial christmas trees you may want to use.
The christmas light tester will indicate which bulbs are bad and need to be replaced.
When they don t work 2.
Usually changing a problem bulb or tightening it will fix the entire strand.
Unpack your bulbs and plug them in to test they work before you put them on the tree.
According to real simple there s an easy way to calculate how much string lighting is needed for any size christmas tree.