How to Install a Dimmer Switch with 2 Wires

Learn how to install a light dimmer switch with only 2 wires in less than 15 minutes. You just need a screwdriver and an electrical tester.

For most cases, you’ll be connecting the black wire (line) from the wall to the black wire or black screw on the dimmer switch. The remaining red or white wire (neutral) on the switch can connect to the white wire from the wall. The bare copper wire from the wall will connect to the green screw or green wire on the switch.

This is the household electrical tester tool that I always use:

Gardner Bender GK-5 Household Tester Electrical Test Kit

Eaton Dimmer Switch

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[lindamorrissey]

My old light switch has two black wires. How do I know which screw to attach the new light wires to

[solie]

Nice well explained video😊
thanks for this!🙏

[deanmosones]

Hi there - what dimmer brand and model did you use?

[bricksailor]

Can I use any 3 way switch for two wires or this one only

[solie]

I got one issue though! When I opened my dimmer switch from the wall -to connect it, I found different color of wires from your white and black, does it matter which one goes where?
I found 2 red and 1 blue wires, my dimmer switch also has 2 screws, one labelled A, another labelled L

Please advise.

[brandons]

My current dimmer switch has only 2 wires. I dont see. Neutral or ground. Is there any way i can install smart dimmer? I see some smart dinner require neutral wire and some dont. But no ground wire on smart dimmer?

[Primero]

So you didn't connect the ground wire ?

[at]

Background music very irritating and distracting.