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Thread: LEDs in New Construction - Class 2

  1. #1
    Join Date
    Aug 2003
    Posts
    26

    LEDs in New Construction - Class 2

    New construction, planning on using some low-profile LED fixtures, rather than installing traditional cans. Something like this: https://images-na.ssl-images-amazon....L._SL1200_.jpg
    (not necessarily that exact fixture, I just grabbed something of the sort for visual reference)

    I believe that to install per code, these need:
    NM cable @ 120V run to a Class 2 listed power supply. Power supply being an in-wall power supply unit, a surface-mounted unit, or one installed in an accessible box.
    Class-2 In-Wall rated wire from power supply to fixture locations
    Connections at fixture locations with WAGO connectors, inline splices, or some other permanent connection (no box)

    Seems pretty straightforward, but I wanted to make sure I have it right before forging ahead.

    Thanks
    Dave

  2. #2
    Join Date
    Mar 2007
    Location
    Valdosta, GA
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    3,814
    I'm curious as to your preference to use these vs traditional housing and LED trim.

    All of them I've seen have a power supply that installs in the ceiling above the fixture, and have a short 6" or so lead to connect the LED.


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  3. #3
    Join Date
    Aug 2003
    Posts
    26
    Quote Originally Posted by brantmacga View Post
    I'm curious as to your preference to use these vs traditional housing and LED trim.

    All of them I've seen have a power supply that installs in the ceiling above the fixture, and have a short 6" or so lead to connect the LED.


    Sent from my iPhone using Tapatalk
    The traditional housing route is a bit of silliness when you think about it.
    Install an expensive housing that's designed around a 100 year old light bulb design (~$20 for a 4" airtight IC housing)
    Buy expensive trim for the housing and an LED bulb designed to look like a 100 year old bulb, or buy a retrofit LED lens/housing (~$30)
    In for $50 per fixture and there is a ton of unnecessary equipment above the ceiling that's not needed. Plus, they can't be installed directly in line with a truss or rafter.

    Or use a purpose-made lamp where a single LED driver can run multiple lights. Picked up a 7-light kit, UL listed, IC rated, for $180. Half the price of the retrofit route, and I can hopefully get a tighter seal at the ceiling as well. Planning on running the romex to an outlet inside a kitchen cabinet. Surface-mount the sizable power supply, then run it's output back into the wall to the fixture locations.

    Also picked up a 4-light set with a power supply that'll fit inside a 4" square box. Placing that inside the adjacent closet with a blank cover plate on it.

  4. #4
    Join Date
    Jul 2005
    Location
    LA basin, CA
    Posts
    1,536
    Quote Originally Posted by ddecart View Post
    New construction, planning on using some low-profile LED fixtures, rather than installing traditional cans...
    Also Known As "Disk Lights", surface mount to 4" light box, direct connect to 120v building wiring.
    Roger Ramjet NoFixNoPay

  5. #5
    Join Date
    Mar 2007
    Location
    Valdosta, GA
    Posts
    3,814
    Quote Originally Posted by ddecart View Post
    The traditional housing route is a bit of silliness when you think about it.
    Install an expensive housing that's designed around a 100 year old light bulb design (~$20 for a 4" airtight IC housing)
    Buy expensive trim for the housing and an LED bulb designed to look like a 100 year old bulb, or buy a retrofit LED lens/housing (~$30)
    In for $50 per fixture and there is a ton of unnecessary equipment above the ceiling that's not needed. Plus, they can't be installed directly in line with a truss or rafter.

    Or use a purpose-made lamp where a single LED driver can run multiple lights. Picked up a 7-light kit, UL listed, IC rated, for $180. Half the price of the retrofit route, and I can hopefully get a tighter seal at the ceiling as well. Planning on running the romex to an outlet inside a kitchen cabinet. Surface-mount the sizable power supply, then run it's output back into the wall to the fixture locations.

    Also picked up a 4-light set with a power supply that'll fit inside a 4" square box. Placing that inside the adjacent closet with a blank cover plate on it.
    Man that's super high. I pay $7 for an IC housing and $14 for a Satco LED trim. Plus, the trims just look nicer than the disk light.


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