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Replacing cord on table lamp

Lamp has two bulbs one at the top and one at the base, they work off the same switch the bottom bulb has two wires one black and one white that runs up to the other bulb and switch. I need to know where these two wires get wired on the switch,and the wires to the new cord there's three connections.

Thank You,

Posted by on

  • jplring Feb 12, 2009


    There is'nt a black and white wire coming from the top bulb only from the bottom bulb,the switch is right on the bulb socket and there is three connections on it for wires.

    Thank You,


  • jplring Feb 22, 2009

    I'm sorry I did'nt get back to you sooner, but I'm having problems with my internet service.The switch is one that allows the bottom light, the top light, or both lights, to come on.The switch is on the top bulb socket, I wired it the way you said and it works,

    but it turns on the top light or both lights,the bottom light does not light by itself.The new cord is polarized could this be the problem?


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From one side of the lamp cord, to one side of the switch.

From other side of switch to both blacks from the upper and lower bulbs.

From other side of lamp cord, to the white coming from both bulbs.

This assumes there is a black and white wire coming from both bulbs.

Please note, look at the lamp cord closely, particularly the plug. If one prong is wider than the other, then the plug is polarized, and you need to pay special attention to the wires leading out of the plug. One of the two will be ribbed, the other smooth. Note which is on the same side of the plug as the wide prong. Whichever is with the wide prong, should NOT connect to the switch, but to the whites coming from the bulbs.

Posted on Feb 12, 2009

  • Mark Egan Feb 12, 2009


    Is the switch function one that allows the bottom light, the top light, or both light's, to come on?

    If so, one terminal is for the bottom bulb, one is for the top bulb, and one is for one side of the line cord.

    The other side of the line cord will be tied together with the remaining wire from each bulb.

    I've not seen a 3 terminal bulb socket/switch combination. If this is what you have, I would think that the line cord terminal would be marked in some way, like the screw is a different color, or there being a marking of some type. Regardless, you will not hurt anything by connecting it wrong, as long as you have the other side of the line cord connected only to the remaining wires coming from each of the bulbs.

    Let me know what you find and I will be happy to help more.


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