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Just bought new flush mount ceiling LED lights. the light in the hallway has 2 switches to it and this light does not completely turn off when flipping the switch off. The tabs are always dimly lit. Is this normal? Should we be concerned about fire? Why does this happen? Is the light defective? Thanks

  • It's floating/induced voltage that exists due to the travellers between the switches run in parallel. It's NOT dangerous, but annoying. One answer is buy higher quality bulbs, another is just ignore it. You can prove this by pulling just one travellers off a switch on either end of the switch circuit (or putting one switch in the non-existent yet functional 'middle' position) which breaks the connection and doesn't keep one traveller wire energized. – Tyson Oct 27 '16 at 1:01
  • @Tyson -- make that an answer and I'll upvote it :) – ThreePhaseEel Oct 27 '16 at 3:24
  • @ThreePhaseEel done. – Tyson Oct 27 '16 at 3:30
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    Do the switches have a light in them (to help you find the switch in the dark)? If so, you'll have to change them. Those work by letting a small amount of current through the actual bulb: not enough to turn an incandescent filament on, but enough to power the electronics in a modern LED (see also: diy.stackexchange.com/a/54111/157) – gregmac Oct 27 '16 at 3:58
  • This is a duplicate -- can someone find the previous question? – Carl Witthoft Oct 27 '16 at 14:57
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It's NOT dangerous, but annoying.

It's floating/induced voltage that exists due to the travelers between the switches run in parallel. You can prove this by pulling just one travelers off a switch on either end of the switch circuit (or if standard toggle light switch putting one switch in the non-existent yet functional 'middle' position which breaks the connection and doesn't keep one traveler wire energized).

One answer is buy higher quality bulbs, another is just ignore it.

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