November 25, 2011 By ©2007-2012Author - Licensed Electrical Contractor Filed under Lighting, Motion Detector

Control Two Outdoor Light Fixtures with a Motion Detector

Control Two Outdoor Light Fixtures with a Motion Detector

 

Solutions for Controlling Two Outside Light Fixtures

Question: I have a ceiling porch light and another outdoor light on my attached garage that are both controlled by a light switch inside the house. I want to replace the existing outdoor garage light with a motion detection light fixture.
I see 12-2 Romex wires in the porch ceiling box coming from the inside light switch and another set of wires that I assume go to the light outside the garage where I want the motion light.
No red wires are visible. I want the motion sensor light to also control the porch light and have the porch light go on/off when the motion light by the garage goes on/off. How can I do this please?
Thanks

This electrical question came from: Carol, a Homeowner from Centennial Colorado
Additional Comments: Just found your website – a lot of very useful information!

Dave’s Reply:
Thanks for your electrical question Carol.
Carol, there are a few ways to accomplish this.

How to Control Two Light Fixtures with a Motion Detector

Wiring Modification
The existing power source at the inside switch location must be isolated from the light fixture control.
A new power source must be located in the garage must be taken to the desired location of the motion detector light fixture.
Purchase a pair of light fixtures where one is rated to control both light fixtures, or purchase a separate motion detector that has the capacity to control the two light fixtures that you desire. Pay special attention to the rated watts or amperage.

Save Yourself Some Expense in the Long Run

Install two motion controlled light fixtures.
This will not require any wiring modifications however these units will operate independently but should still provide the desired amount of lighting.

Automation Devices such as X-10

Install two compatible automated fixtures, one being the master control, the other being the slave unit.

If this confuses you then this is best accomplished by hiring an electrician who understands lighting controls.

The Following links will assist you with your electrical question:

motion detector wiring
motion-fixture
Installing Motion Detector Light Fixtures
Installing motion detector lighting fixtures provide security and energy savings and they can easily replace an existing exterior wall fixture.

You identified your project to be about Home Automation, so you might find this information useful:
Home Automation
Home Automation
Home Automation
Home automation is about delivering practical control of your lighting, home and personal lifestyle which provides comfort and control and energy savings.

Electrical Junction Boxes

Electrical Code for How Many Wires in Junction Boxes

Garage Wiring

Lighting For The Home

Lighting Electrical Codes

Light Switch Wiring

Wiring Diagrams

Electrical Wire for the Home

How to Install Garage Electrical Wiring
garage-electrical-wiring
Garage Electrical Wiring
Fully Explained Photos and Wiring Diagrams for Garage Electrical Wiring with Code Requirements for most new or remodel projects.

For more information about Electrical Wiring
Electrical Wiring
Electrical Wiring
Electrical Wiring
Home electrical wiring projects with pictures and wiring diagrams.


Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all projects.
For Best Results Consult a Licensed Electrical Contractor in Your Area

* Please Use This Link to Ask the Electrician a Question using the Question Form. Thank You!

Thanks for Your Comments about this Article or the Website


FOR THE BENEFIT OF ALL:
Questions should be asked from a page of the Same Topic, otherwise your question may be discarded.

*