DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Electrical and Wiring > Wiring led dimmer from existing light switch

LinkBack Thread Tools Search this Thread Display Modes
Old 04-02-2013, 11:31 AM  
Senior Member
Join Date: Dec 2009
Posts: 135
Liked 6 Times on 6 Posts
Likes Given: 10

Default Wiring led dimmer from existing light switch


I want to install a LED transformer and dimmer next to an existing light switch. I am really not sure how the kitchen was wired since there are 2 lights (ceiling and above sink) but I know which switch I want to use to feed my LED transformer. This switch currently "controls" the light above the sink.

As per the attached picture, the power seems to be coming in this switch, then off to the light. The ongoing red wire would (I think) feed the light, while the hot (black) is looped around the switch terminal to constantly feed something else (perhaps the other ceiling light?)

I am not sure of the wiring of the other light and stuff such as heating, range fan, outlets, etc. Does it matter anyways since the led will be using maybe 120W at 12V..? Not sure how much watts per foot really but it can be that much..

So if using this existing switch, would I simply connect the transformer's Hot wire to the current hot wire (black) and neutral with neutral (white)?

would it be that simple?


Last edited by condoowner; 04-02-2013 at 11:42 AM.
condoowner is offline  
Reply With Quote Quick reply to this message
Old 04-02-2013, 04:01 PM  
Join Date: Nov 2010
Location: vancouver, b.c.
Posts: 10,226
Liked 838 Times on 749 Posts
Likes Given: 1456


You need to find out if power come to this box first or goes to the light first. The red in there sometimes indicate two cercuits, so when you turn off the breaker you still may have a live wire in the box. Pull the light and see how meny wires you have in that box and is the red one there too.

nealtw is offline  
Reply With Quote Quick reply to this message
Old 04-02-2013, 05:53 PM  
Join Date: Mar 2006
Location: Welland, Ontario
Posts: 966
Liked 102 Times on 84 Posts
Likes Given: 4


Looks to me like you have power coming in and going out on the black wires. The white is the neutral. The red is the switched power to the light.

JoeD is offline  
Reply With Quote Quick reply to this message

Quick Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
new light/switch off existing circuit gadus Electrical and Wiring 18 09-27-2012 10:12 AM
Help with light/switch/2 Outlet wiring stevevz Electrical and Wiring 8 08-23-2012 07:13 AM
Dimmer Switch texasman Electrical and Wiring 1 06-30-2012 07:37 AM
3 way dimmer switch Daryl in Nanoose Electrical and Wiring 5 11-27-2007 06:51 PM
Dimmer Switch - 3 Way....No Way freddy001 Electrical and Wiring 2 12-03-2006 03:39 PM