Just replaced an halogen light stick with a new, to me, LED one. When I turn it on it lights but when I turn it off it still glows

I'm no Edison but it doesn't feel right.

0-0

Always on: Got it.

This message has been edited. Last edited by: sigfreund,

Some fixtures or circuits have a low voltage constant current that goes though (even when the light switch is off). That is not enough to light a traditional bulb, but can be enough to light up a LED.

Is there a timer, dimmer, or three way switch on this circuit?

quote:

Originally posted by Gibb:
Some fixtures or circuits have a low voltage constant current that goes though (even when the light switch is off). That is not enough to light a traditional bulb, but can be enough to light up a LED.

Is there a timer, dimmer, or three way switch on this circuit?

This is likely the cause.

Besides dimmer or timer it can also be a lighted switch. The ones that have a small light to find the switch in the dark bleed through voltage.

Yup, you need a real switch. The one you have is leaking.

I put an LED in the overhead light in my Tacoma. It stays dimly lit all the time too.

quote:

Originally posted by Skins2881:

quote:

Originally posted by Gibb:
Some fixtures or circuits have a low voltage constant current that goes though (even when the light switch is off). That is not enough to light a traditional bulb, but can be enough to light up a LED.

Is there a timer, dimmer, or three way switch on this circuit?

This is likely the cause.

Besides dimmer or timer it can also be a lighted switch. The ones that have a small light to find the switch in the dark bleed through voltage.

This happened to me about 8 years ago when I put an Led bulb fed by a lighted 3 way switch. Freaked me out at first.

I have a garage switch with a motion sensor switch that does this to the two fluorescent T-8 fixtures. I have to turn off the “auto” switch or the fixtures glow.

Is it ok to let them “glow” or should I continue to keep the switch in “off”. So there is no glow. If it’s ok for the glow I would love to keep it in auto so lights come on when we enter garage.

^^^^^ I'm not an electrician, but I'd worry about real fluorescent lights staying in "glow" mode. My recollection about them is that it should only happen during the short interval before the lamp fully lights up--it may be detrimental to the life of the bulb if it stays glowing.

flashguy

This happened to me in my house that still has some K-T wiring with non-discrete commons. I fixed it by running a discrete common back to the panel. It was a little freaky until I figured it out. The light was still on, even though the breaker was open.

It's a function of the New Green Deal - Free Light.