Usually the problem with light bulbs that burn out too quickly is that the person who screwed them in simply tightened them too much.
If a bulb flickers it is most likely from over tightening too. When you unscrew a bulb you will see a brass tab inside the fixture. This tab is angled and slightly spring loaded, if its been compressed too much it will cause a bad connection. DO NOT stick your finger in there while it is powered! Turn off the switch and test to make sure theres no power with a tester! If this tab don't make good contact with the connection at the bottom of the bulb you can get arc's. Also a hole could form which would break the vacuum in the bulb which gets replaced with your normal house air to cause a quick burnout. If you turn too tightly you could also break the cement type connection between the threaded part and the glass part of the bulb which would also cause a quick burn. If you find your brass tab in the fixture is compressed too far, turn off the power to the light and test for power with a tester, or simply turn off the breaker for that area to be sure its not live and try to bend it back to a nice 30 degree angle and make it springy again. Its good to screw in replacement bulbs with the power on, when the light comes on simply give it another 1/8th of a turn and your all set to get a full life from your new bulb. |
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