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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.
    Simple automation when DIY isn't working

  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
    Lutron Technical Support
    Join Date
    May 2013
    Three way wiring is shown in the Advanced Installation Guide here: .

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