Any electrical knowers out there

  • userse31 [it/its, he/him]@hexbear.net
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    4 days ago

    No.

    It’s just the “B+” capacitor holding a charge for a bit.

    I’ve modded LED bulbs before. If you set the current down low enough, they’ll do this same thing.

  • vala@lemmy.dbzer0.com
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    4 days ago

    The universal constant is just slightly slower in your house. Some places have this issue. Colloquially referred to as “light lag”. Nothing to worry about.

  • hotspur [he/him]@hexbear.net
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    5 days ago

    Probably means the lamp has a transformer / ballast component, and there might be some extra power still moving through that. Like the power brick on a laptop, often when you unplug it it has a lower light on the brick, you’ll see the light stay on a few secs.

        • Keld [he/him, any]@hexbear.netOP
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          4 days ago

          Yeah screw in, it might be LED. But I’m not entirely sure. But switching the bulb for another bulb didn’t make it turn off quicker.

          Edit: Although the bulb started flickering on the other lamp, so I think it 's a bad bulb + something else. Gonna have to go get a new bulb tomorrow.

          • trompete [he/him]@hexbear.net
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            4 days ago

            So the bulb turns off immediately in another lamp? Maybe the switch on your lamp doesn’t open fully when you turn it off.

            I remembered something else: If you have a switch that cuts neutral instead of the live wire or both wires, LEDs can continue to faintly glow because of induced current. So I guess try reversing the plug on your lamp (if you can, I know in many countries the plugs are not reversible), but idk maybe that’s not it.

          • WilsonWilson [comrade/them, any]@hexbear.net
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            4 days ago

            If a new bulb doesn’t fix the problem then the switch on the lamp is bad and lamp needs to be replaced. It probably has a standard E26 socket which means house voltage at the socket and the electronics are inside the bulb. I’m not sure what the lamp standard is but sometimes there is a switching circuit which provides a lower voltage to the user knob/switch for safety and uses that to control the house voltage to the bulb socket so there could be circuit board and componants at the switch going bad. Installing a new bulb will tell you where the problem is.

            • Keld [he/him, any]@hexbear.netOP
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              4 days ago

              If it isnt dangerous id rather keep the lamp. I can handle a 1 second delay on switching off and the lamp has sentimental value

              • WilsonWilson [comrade/them, any]@hexbear.net
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                4 days ago

                If the bulb fix doesn’t work and you want to take it apart and show me a pic of the switch I can probably tell you if it can be repaired or replaced with a new switch. I get the sentimental value thing I got my mom’s tiffany pole lamp and if it went bad I would repair it.

  • trompete [he/him]@hexbear.net
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    4 days ago

    I’m not like an expert, but capacitors and coils (like in a transformer) have a sort of inertia. You can look at voltage and current response curves of these components. Figure 3 and 7 in this teaching material I found on Google shows such graphs.

    I’ve seen little LED power indicators on stuff take a second to go out when you unplug the power supply from the wall. Haven’t seen it with a light, but modern LED lights do have power supplies so it’s not impossible.

  • FoxAlive@lemmy.zip
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    4 days ago

    When you say click the switch instead of flip the switch it makes me think you are using some kind of WiFi/ZigBee based light switch.

    If that’s the case then yes that’s normal, and would make sense why it happened more recently and only in that one specific room. If you introduced new hardware that runs off WiFi it could be polluting that room and making it take longer to turn off the lights. I try not to let anything running off 2.4 exist in my house.

    If its hardwired I don’t think I am of any use.

    • Keld [he/him, any]@hexbear.netOP
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      4 days ago

      I am using a white switch that came with the lamp that sits on the cord and goes click. I just said click instead of flip because my brain reaches for the wrong word.

  • WilsonWilson [comrade/them, any]@hexbear.net
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    4 days ago

    Not a good sign if the behavior changed recently. If it has always done that it’s probably just the design. Ied lamps have an led driver in there and they generate a lot of waste heat at the power transistor and the led itself. I’ve had a few go bad due to bad thermal design. Had a led pole lamp that fried once and created a burning smell. I took it apart and board had burn marks and melted componants. If it is a flouro, hps or similar might be what hotspur mentioned

    • Keld [he/him, any]@hexbear.netOP
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      4 days ago

      no burning smell, and switching the bulb for another bulb from another lamp hasn’t made it turn off quicker (Although it has made it light up brighter)

      It might be LED? I don’t actually know, it was the cheapest bulb in the store and I bought it forever ago.