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Thread: Staircase question with two on/off swithes

  1. #1
    Junior Member
    Join Date
    Nov 2015

    Staircase question with two on/off swithes

    I have a stair-case with a basic on-off switch at the top and bottom. The two switches control a small chandelier.

    Can I add a dimmer switch (P-PKG1W-WH) at the bottom only? My fear is that on/off switch at the top of the stairs will jack up the control on the dimmer switch at the bottom of the stairs.

  2. #2
    Senior Member
    Join Date
    Jun 2013
    That package would not work with the other switch. You would need the Caseta Pro dimmer to work in a wired three way set up. You could use the Pico in place of the other switch, and you would then be able to dim from either location.
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  3. #3
    Junior Member
    Join Date
    Nov 2015
    Thanks for the education. Much appreciated!

  4. #4
    Senior Member
    Join Date
    Jul 2015
    With a Pro model, you can have a dimmer at the bottom and regular switch at the top. (afraid I don't knew how the switch effects the dimmer as I don't have one.) you can also use a regular dimmer with a pico at the top of the stairs. only issue is Casetas don't have a return to previous setting like some dimmers do.

  5. #5
    Junior Member
    Join Date
    Jan 2016
    I believe you have classic 3 ways switch connection (3 wires + ground in each switch).
    In-wall dimmer package (P-PKG1W-WH) will work if your total wattage is below 150W;no need to go to PRO package. But I won't recommend you to change only 1 switch. The most easy solution is replace 1 switch with in-wall dimmer, and replace another switch with PICO + Wall mount. Then both switches will be sync and work beautifully.

    Keep in mind, 3 ways connection does not show in the installation manual. Let me know if you need any instruction.

  6. #6
    Authorized Lutron Contributor
    Join Date
    May 2013
    Three way wiring is shown in the Advanced Installation Guide here: .

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