first half of christmas lights not working

When the replacing the bulbs doesn’t work, one final thing to check is the plug fuse. Unfortunately, there is no sure way to tell what voltage your spare bulbs are, except by keeping the packaging. Using 2.5-volt bulbs on a 3.5 volt string will most likely result in a very dim string of lights. If you use 2.5-volt bulb on a light string rated to carry 3.5 volts, the higher electrical current will quickly burn out your new replacements. Most string lights require 2.5-volt or 3.5-volt bulbs. If you do have to replace an incandescent mini light bulb, check your string light packaging to determine which voltage your lights use.

You can also indulge your inner cowboy with its Quick Fix Trigger, which sends a harmless pulse of electricity through the circuit to find and fix a shunt that failed to energize, lighting the unlit section. Its Audible Voltage Detector easily scans and beeps for circuit interruptions at a bulb, broken wire, or poor contact where the voltage is blocked. A mini light tester, like our Light Keeper Pro, will allow you find and correct bulb or voltage issues. the base part) of a bulb is damaged, there won’t be a complete circuit to keep the string lit and you will be looking for burn marks through the tiny colored glass. However, you could be left in dark if several bulbs fail at once. Purchasing mini light strings that promise to stay lit when a bulb bites the dust is one way to make your hunt a little easier.

Incandescent string lights are notorious for this particular issue. One burnt out bulb can signal a major headache in your search to replace it.

First half of christmas lights not working