If you have older wiring it can lower an LED bulb’s lifespan. The most common reason that an LED bulb can burn out is what it is connected to the wiring. What are some of those factors and how can you maximize the life of your bulbs? The Wiring And Wattage Despite that they can burn out and while it may be quite awhile for that to happen there are some factors that can accelerate this process. They seem to be able to last forever and when compared to the incandescent bulbs of your youth they do. Slowly pull it up so the end of the tab is about one quarter inch off the base of the socket.LED light bulbs are great. Use a needle-nose pliers and carefully grasp the sides of the brass tab near the tip of the tab, not where it bends down into the underside of the socket. If you discover the tab is flattened, then you must turn off the power to the lights, and as an additional safety safety measure, turn off the circuit breaker to the lights. People who twist bulbs in tightly will depress and flatten the tab so it does not spring back when a bulb is replaced. To prevent this arcing you must be sure the brass tab is always at about a 30-degree angle inside the bottom of the socket. When this happens, the electrical contact between the brass tab and the solder is broken and the light bulb acts as if it has been turned off when in fact the switch is on and the bulb is still in working condition. When this happens, the filament burns out rapidly. In some cases, this arcing can create a hole in the base of the bulb causing air to enter the bulb. Over a period of time, the solder can deform and the gap between the solder and the brass tab gets larger. If the brass tab at the base of the socket does not make firm contact with the bottom of the light bulb, a small electrical arc, or spark, can happen that starts to melt the solder. It is close in size, but not always the same size or height.ĬLICK HERE to get FREE & FAST BIDS from local electricians who will stick their fingers down and pull up the brass tab if you'r fearful of getting ZAPPED! More importantly the size of this drop of solder is not consistent from light bulb to light bulb. You will quickly notice that the bottom of most light bulbs has a small droplet of solder in the center of the base. Take several new light bulbs and inspect the base of each one. Do not ever stick your finger in the socket to test this, as you can get shocked if the power is on to the fixture. This tab is bent at an angle when the fixtures are new and will spring back and forth if depressed slightly. © 2017 Tim CarterĪt the base of light fixture sockets you will find a brass tab. You can clearly see the brass tab and if you look closely you can see it is raised up off the bottom of the socket. The flickering of light bulbs in lamps and fixtures can also be caused by bulbs that have been installed too tightly into light fixtures. I think they are twisting them into the socket too tightly. My first guess is that it can be traced to the person who has installed the light bulbs or previous owners of your home. Are the bulbs the wrong size? Is there a problem with the wiring? Cory Dixson, El Dorado Hills, CAĭEAR CORY: The problem with the premature failure of the light bulbs has nothing to do with the wattage or the wiring. I just replaced one and it burned out in an hour.
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