Delay from switch to light fixture


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Old 08-16-15, 01:18 AM
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Delay from switch to light fixture

I have some light fixtures in my house that have about a 1 second delay before turning on. 2 in the bathroom, 2 hallway lights and 1 of our outdoor lights. I've never had this happen in a previous house so I don't know what the issue is as there is 4 different types of lights on 3 different circuits. Could it be something as simple as a ****ty light switch although they are the same throughout the house?

Would like to know if it is something easy that I can fix as it's becoming a bit of an annoyance to me.
 
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Old 08-16-15, 03:43 AM
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It takes a long time for the electricity to reach the bulbs Just kidding. Are you using LED bulbs? Some take a micro time to activate. Yes, it could be in the switches, but not likely unless they are old and worn out to where the contacts are pitted. I'd try changing switches first, since it is fairly simple. None are dimmers, are they?
 
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Old 08-16-15, 04:15 AM
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Fluorescents may take a second to turn on but incandescents and LEDs should turn on immediately.

Is the delay the same each time for the same light?
 
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Old 08-16-15, 05:08 AM
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Try this, turn the light in question on,leave it on for a minute or so,turn it off and back on in 10 seconds or so and see if there is still a delay.
Geo
 
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Old 08-16-15, 05:46 AM
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I used to own stock in a company named Piezo Electronics which marketed a small device (the size of a nickel) that was positioned at the bottom of incandescent light bulbs, and would cushion the shock to the filament by slowing change in temperature. The thought was that by eliminating the shock, the life of the filament would extended many times over.

If it's just one bulb, you could check the base of the bulb and see if there's a remote chance that one of those Piezo devices was installed in that fixture.
 
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Old 08-16-15, 05:02 PM
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I have an eight-foot twin tube high output fluorescent fixture in my "project" room that takes a full second to light. I suspect it is because I do not have an equipment ground to the fixture. Similar fixtures in my garage, only grounded, take less than a half second to come to full brilliance.
 
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Old 08-16-15, 07:19 PM
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LEDs should turn on immediately
I have seen many LED bulbs that have a slight delay turning on. It's not long, but noticeable.
 
 

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