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by Dave2
Thu Dec 19, 2013 2:15 am
Forum: Off-Topic
Topic: The Incandescent Light Bulb R.I.P. ?
Replies: 106
Views: 15564

Re: The Incandescent Light Bulb R.I.P. ?

Keith B wrote:
Dave2 wrote:
TLE2 wrote:...that last significantly longer, use less electricity for the same light output.
CFLs die faster than incandescents in my house.
My in-laws house has issues with CFL's in the older section. The wiring there is older cloth braided 2-conductor (hot and neutral only) NM Romex. There is enough induced current in a switch leg that the bulbs will actually 'flash' periodically when the switch is off. This is caused by the capacitor used as a ballast being charged up and once it hits a peak it discharges and causes the bulb to flash. With 3-wire (hot, neutral and ground) the ground helps prevent the induced current and doesn't cause the issue. I was able to fix one of the rooms by switching the hot leg (the proper way it should be wired anyway) and replacing the switch. The other room has a ceiling fan and I didn't pull it, and a new switch didn't fix the issue. There is no issue with the halogens or LED bulbs, and no problem with CFL's in the newer parts of the home.
The house was built in the 80s, so no 2-wire circuits. The lights do flicker... We've got voltage meters on several circuits, and the (slow) fluctuations track pretty well with expected demand (i.e. the voltage is lower during the day in summer when all the ACs are on).
by Dave2
Wed Dec 18, 2013 10:21 pm
Forum: Off-Topic
Topic: The Incandescent Light Bulb R.I.P. ?
Replies: 106
Views: 15564

Re: The Incandescent Light Bulb R.I.P. ?

TLE2 wrote:...that last significantly longer, use less electricity for the same light output.
CFLs die faster than incandescents in my house.

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