incandescent bulb works correctly LED does not

[northshore]

Since we had a thread on incandescent bulbs and LED.
My problem is that the incandescent bulb works correctly, switches on and off just like it is suppose to. The LED is on no matter what position the switch is in, on or off the LED stays lit.

[Boon_Docker]

Looks like Nikola Tesla is alive and well.

[GordonThree]

Those use a tiny rechargable battery or a super capacitor. The led takes so little power it can run for a while on a very small reserve.

[Chris_Bryant]

RickLight wrote:

Chris Bryant wrote:
We have led nightlights that light up even when the power is out- not sure where the power is coming from.

That's worth investigating, if you care about your battery.

Do you have a battery disconnect switch?
Ever put an ammeter on your battery lines?
Could they be phosphorescent?

Clarification, this is in our stick and brick house 🙂

[RickLight]

Chris Bryant wrote:
We have led nightlights that light up even when the power is out- not sure where the power is coming from.

That's worth investigating, if you care about your battery.

Do you have a battery disconnect switch?
Ever put an ammeter on your battery lines?
Could they be phosphorescent?

[Chris_Bryant]

We have led nightlights that light up even when the power is out- not sure where the power is coming from.

[GordonThree]

I think we lost the OP, this will remain an unsolved mystery.

[SidecarFlip]

Ed_Gee wrote:

northshore wrote:
Since we had a thread on incandescent bulbs and LED.
My problem is that the incandescent bulb works correctly, switches on and off just like it is suppose to. The LED is on no matter what position the switch is in, on or off the LED stays lit.

LEDs do not light up without power. Either your DC lighting switch is leaking....or something screwy about your DC lighting wiring system.....

If it does, you'd better hurry up and patent it. Perpetual motion or lighting with no remote power is a fantasy.

[RickLight]

As you can see from the above comments there are many things that can go wrong.

More information is needed to sort through the possibilities.

[opnspaces]

If your switch is illuminated it can probably leak enough current to light the LED.

[GordonThree]

Sounds like what a motion detector does. They rely on a cold incandescent to "leak" a milliamp or two just to power the electronics. Not enough to light a filament but sometimes enough for LED.

[Ed_Gee]

northshore wrote:
Since we had a thread on incandescent bulbs and LED.
My problem is that the incandescent bulb works correctly, switches on and off just like it is suppose to. The LED is on no matter what position the switch is in, on or off the LED stays lit.

LEDs do not light up without power. Either your DC lighting switch is leaking....or something screwy about your DC lighting wiring system.....

[Dick_B]

We have a night light with the same problem. I think it is something to do with the internal circuitry of the led but that's more than I know.
I like the `leakage' idea. Maybe our night light switch does not completely break the circuit or the wiring is reversed do the switch breaks the ground rather than the power. Now I know even less!

[enblethen]

What series incandescent are you replacing?
What LED lamp is going in?
Look in socket to see how many pins in base. (small solder dimples)
Sounds like the incorrect lamp.

[DFord]

🙂