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I installed fluorescent lamp in my bathroom. When the switch is off the lamp ticks at frequency of around 6-7Hz. That means there is a voltage when it is off. The switch has no backlight.

First of all is it dangerous? I had a serious fire few years ago in other building because of electrecity failure and I am little sensible about that kind of stuff.


migration rejected from electronics.stackexchange.com Feb 4 '14 at 15:20

This question came from our site for electronics and electrical engineering professionals, students, and enthusiasts. Votes, comments, and answers are locked due to the question being closed here, but it may be eligible for editing and reopening on the site where it originated.

closed as unclear what you're asking by Tester101 Feb 4 '14 at 15:20

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question.If this question can be reworded to fit the rules in the help center, please edit the question.

Are you sure it means there is a voltage? Maybe there's a bug. Maybe the building is vibrating. If you are seriously concerned, you shouldn't be trusting some people on the internet to make a determination based on nothing more than a brief description. Hire a professional. – Phil Frost Jan 22 '14 at 3:17
@PhilFrost I read about it and this is common problem with fluorescent lamps, which might be connected to the backlight at switch, but this is not the case. Nobody said is it dangerous. PS: I do not live in USA : P I assume you are after your approach about hiring a professional, there is no such thing as licensed electrician here. Please help : ). – Yoda Jan 22 '14 at 3:22
Do you have a dimmer on them? – Spehro Pefhany Jan 22 '14 at 3:27
What, there are no professionals outside the USA? That would be unfortunate. Regardless, no one can make a proper determination on the safety of your situation based on just your description of a ticking noise. "I just received a box that is heavy and ticks. Is it dangerous?" "My car is making a ticking noise. Is it dangerous?" "My cat is making a ticking noise. Is it dangerous?" – Phil Frost Jan 22 '14 at 3:29
@Yoda it's quite possible to be a professional without having a license. Was someone paid to install the electrical system in your house? That person is a professional. – Phil Frost Jan 22 '14 at 3:33