Installing an outdoor motion sensor light on your property not only enhances security but also adds convenience. With motion-activated lighting, your outdoor area illuminates automatically whenever someone approaches, providing safety and ease for tasks like taking out the garbage at night or fumbling with keys at the front door. Fortunately, installing a motion sensor light is a relatively simple process.
Steps to Install
Removing the Old Fixture
Switch off the power to the light. Since most outdoor motion sensor lighting is installed in place of a current porch light, you'll need to start by removing the old fixture. Before touching the light, go to your home’s electrical box and cut off the power to the existing light.
Detach the existing light. Use a screwdriver to loosen and remove the screws securing the current light fixture. Exercise caution not to pull too forcefully as the light remains connected to the electrical wiring. Prioritize safety by testing the wires with a wire tester to ensure they are not energized before proceeding.
Disconnect the wire connections. Identify the three wires attached to the light: the white (neutral), green or copper (ground), and black or red (hot) wires. After confirming that the wires are not live, detach them from the old light fixture. Note that in some cases, particularly in older homes, the hot wire may be a different color such as yellow.
Inspect the existing electrical box. Consider replacing the electrical box if it is outdated or shows signs of damage such as moisture or deteriorated seals. Remove the current box, feed the wiring into a new box, and securely fasten it in place.
Setting Up Your Motion Sensor Light
Attach the adjustable crosspiece provided in the light kit to the electrical box. The light kit includes a crosspiece bracket with multiple holes to accommodate various electrical box sizes. Align the bracket with the installed electrical box and fasten it securely in place with screws.
Fit the provided rubber gasket around the outer edge of the new fixture. The light kit includes a rubber gasket designed to snugly fit against the fixture's base where it meets the wall. Slide the gasket over the wiring and position it in place. It doesn't need to be perfectly aligned yet; the key is to have it in position before connecting the wiring to the electrical box to avoid having to disconnect it later.
Secure the wiring using wire caps. Ensure proper wiring connections by joining the neutral (white) wires together and the hot (black/red/yellow) wires together. Use wire caps to secure the connected wires, and reinforce them with electrical tape. Additionally, tighten the copper ground wire around the designated screw inside the light fixture casing to establish a secure connection.
Attach the light assembly to the electrical box bracket while keeping the gasket in place. After connecting and securing the wiring, position the wiring inside the electrical box to create space for mounting the light assembly. Align the light assembly against the wall, ensuring the rubber gasket is correctly positioned, and secure it in place using the screws provided.
Weatherproof the fixture. After confirming the light's functionality, seal the fixture where it connects to the wall plate using silicone caulk. This step prevents moisture from entering the casing and potentially causing electrical shorts.
Testing and Adjusting Your Motion Sensor Light
Restore power to the fixture. Now that you've completed the installation, switch the power back on at the breaker box to test the fixture.
Trigger the sensor. Once the power is restored, walk in front of the sensor to confirm that the light activates. Afterward, seal the fixture with silicone caulking before adjusting the settings.
Position the lights. It's best to adjust the lights during dusk or early evening. Most motion sensor lights have adjustable lamps that you can swivel to achieve the desired lighting spread. Rotate the lamps until you're satisfied with the illumination.
Align the sensor. Motion sensor lights typically feature a pivot-mounted sensor that allows you to direct it towards specific areas like your driveway or gate. Adjust the sensor's angle to cover the desired locations effectively.
Adjust the sensor sensitivity. Depending on your light model, you might find a switch or knob to tweak the sensor's sensitivity. Higher sensitivity means more triggers for the light. For instance, you might not want the light activating with every gentle breeze, especially if it's visible from your bedroom window. Adjust it according to your preferences.
Set the duration. Most motion sensor lights feature a timer alongside sensitivity adjustments. This timer determines how long the light stays on once activated. Adjust it to suit your needs.
Helpful Tips
- The optimal mounting height for a motion sensor light is 6–10 feet (1.8–3.0 m) above ground level. Position it so that motion crosses the sensor's path rather than moves directly toward it.
- If you need to place the light away from an existing fixture, consider battery- or solar-powered options. Solar lights may be less powerful, but both types offer functionality during power outages. Remember to test batteries regularly for battery-powered lights.
- Before installing new electrical wiring, check local building codes. Some areas may require a licensed electrician for new outlet installations.
Warnings
- Always remember to switch off the power before starting any electrical work. Failure to do so can result in electrical shock.
- If you notice any abnormalities in the wiring, such as exposed or burnt wires, contact a certified electrician immediately for inspection and repair before proceeding.
Materials Needed
- Outdoor motion sensor light
- 4-in-1 screwdriver
- Voltage tester
- Electrical tape
- Caulk
- Wire stripper/cutter
- Potentially a new electrical box
- Wire connectors
- Ladder