Are there certain lights in or outside of your home that when turned on, cause you to cower and cover your eyes? A dimmer switch can make such lighting more versatile, creating a more comfortable home environment for you and your family by allowing you to fine-tune ‘the ambiance’ to your liking – and putting you back in control of when you need those sunglasses.
Lights Too Bright? Installing a Dimmer Switch is Easy
Installing a dimmer switch is easy, but like planning your landscape lighting, requires a little bit of forethought. Before ejecting your current light switches, do your homework. Not all bulbs can be dimmed, including many CFLs and LEDs – so be sure to check bulb boxes for specifications before purchasing. In addition, ceiling fans require special dimmer switches to prevent current fluctuations from damaging the motor. Shop carefully!
How to Install a Dimmer Switch
- Gather Tools & Materials
- Wire strippers
- Screwdriver
- Voltage detector
- The correct dimmer switch for your application:
Single or Three-Way (see below). - Flashlight (in case of insufficient light)
Installation Steps
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- Cut the Power
Cut power at the breaker box (not the light switch). Then use a voltage detector to ensure power has been cut before touching any wires. - Remove the Old Switch
Unscrew and remove the switch plate cover and then the switch. Loosen the wires (typically wrapped around connector screws) – or simply snip off the ends with wire strippers and remove the old switch, using wire strippers to remove ¾-inch of casing from the end for reconnection. - Check Dimmer Switch Instructions
Always make sure you understand which part of the switch is top/bottom, and where the wires go before hooking things up.- Green: Ground or copper wire.
- Black: Wires going to the dimmer (placed on either gold screw).
- Cut the Power
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Know Your Installation Type:
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- Installation Steps for Standard/Single Pole Dimmer Switches
(Light is Turned On/Off from Single Location)- Connect the green ground wire to a green or exposed copper wire in the wall box, twisting ends together with a wire connector nut.
- Connect each dimmer wire (black) to the house wires seperately. These could be black, white with black markings, or red. Tighten the ends together with wire nut(s).
- Installation for Three-Way Dimmers
(Light Can Be Turned On/Off from Multiple Locations)- Remove ¾-inch casing from house wires with a wire stripper. Remove the twisted ends first when wires are bent.
- Connect the green ground wire to a green or exposed copper wire in the wall box, twisting ends together with a wire connector nut.
- For the dimmer wire (black) connect it to your tagged common wire, removing electrical tape as necessary.
- For the 2 remaining ‘traveler wires,’ connect them separately to each remaining wire in the wall box.
- Installation Steps for Standard/Single Pole Dimmer Switches
- Put Things Back Together
After the wires are attached, install the switch back into the electrical box, followed by the switch cover plate. - Change Bulb(s)
Remember, not all bulbs are compatible with dimmer switches, so you’ll likely have to swap out your old bulb before putting your new dimmer switch to use. - Restore Power
Then have fun playing with your new dimmable light!
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Smart Installation Safety Practices
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- Ensure safety by tripping the circuit breaker to the switch being replaced. (If you only turn the switch off, you run the risk of getting zapped.)
- Always loop the wire around the screw, when possible, to avoid the wiring pulling loose over time. Loop the end into a ‘U,’ pinch the ends together, and tighten the screw.
- Do not leave bare wires exposed. Trim ends and recap if necessary.
Let’s Install That Dimmer Switch!
