Switches & dimmers · Our pick
What smart switch works for a 3-way light with no neutral wire?
Buy the Lutron Caseta 3-Way Smart Dimmer Kit. Lutron says its dimmer works with no neutral, and the Pico remote is your second switch.1 Every no-neutral 3-way we could confirm works this way. The Kasa, Leviton D315S and Lutron on/off kits all need a neutral.2–4
Our picks
Best for most homes
Lutron Caseta 3-Way Smart Dimmer Kit (PD-6WCL + Pico)
The dimmer needs no neutral, and the Pico remote is the second switch.1
$74.95 on Amazon
Best for a bigger LED load
Leviton Decora Smart No-Neutral Dimmer DN6HD
Rated for 300 W of LED, but it needs a ground wire and Leviton's bridge.5
$49.98 on AmazonEvery 3-way smart switch we checked
Rows marked Works with no neutral are the ones where the maker says no neutral wire is needed. We read each maker's own page, because Amazon titles often say 3-way and leave out the neutral.
| Product | Neutral wire | How the 3-way works | Hub or bridge | LED rating | Price |
|---|---|---|---|---|---|
| Lutron Caseta 3-Way Smart Dimmer Kit (PD-6WCL + Pico)1 | Works with no neutral | Pico remote, no new wire | Smart Hub for app and voice | 150 W LED | $74.95 |
| Leviton Decora Smart No-Neutral Dimmer DN6HD5 | Works with no neutral | Wire-free companion | Leviton MLWSB bridge | 300 W LED | $49.98 |
 Kasa Smart 3-Way Switch HS2102 | Required (at least one box) | Yes | $19.99 | ||
 Youngzuth 3-way Zigbee Smart Light Switch6 | Claim only | Yes, listing says | Zigbee hub | $29.99 | |
 Leviton Decora Smart Switch D315S3 | Needs a neutral | Yes | $39.00 | ||
 Lutron Caseta 3-Way Smart Switch Kit (on/off)4 | Needs a neutral | Pico remote | $74.95 |
Prices on Amazon, November 2, 2026.7
Four 3-way listings that fail or are unproven
Leviton Decora Smart Switch D315S
A 3-way switch that fails the no-neutral test. Leviton's page lists a neutral as required.3
Kasa Smart 3-Way Switch HS210
A cheap 3-way switch that needs a neutral. TP-Link's FAQ says that if neither of your two boxes has a neutral, you will be unable to use the HS210.2
Lutron Caseta 3-Way Smart Switch Kit (on/off)
Looks right because it says Caseta and 3-way, but the Amazon listing says the kit includes the PD-5ANS, which Lutron lists as needing a neutral.4
Youngzuth 3-way Zigbee Smart Light Switch
The listing says no neutral wire is required and that it works as a 3-way. We found no maker page to confirm it, and it needs a Zigbee hub.6
How does a 3-way smart switch work with no neutral?
The no-neutral kits keep one smart dimmer and turn the other switch spot into a wireless remote. Lutron's kit does this with a Pico remote.1 Leviton does it with a wire-free companion that pairs with its no-neutral dimmer.5
A kit that adds a second smart switch instead is a different design. Kasa and the Leviton D315S do that, and both need a neutral.2, 3
Do I need a hub for a no-neutral 3-way?
Lutron describes its Smart Hub as the control center for the Lutron app, scenes, schedules and voice assistants.8 The dimmer and Pico remote are the part that gives you 3-way dimming.1
Leviton needs a bridge. Its no-neutral dimmer requires the Decora Smart Wi-Fi Bridge, with or without a 3-way.5
Should I pick Lutron or Leviton?
Pick Lutron for most homes. Its dimmer is rated for 150 watts of LED, and the kit includes the Pico remote.1
Pick Leviton if you have a lot of LED bulbs on the circuit. Its dimmer is rated for 300 watts of LED, but your box must have a ground wire, and you must buy the bridge.5
How do I know if my box has a neutral?
TP-Link's FAQ explains how to find the neutral wire in a switch box.9 If you are not sure what you are looking at, stop and ask a licensed electrician before you buy.
Questions people ask
Can I use a 3-way smart switch with no neutral wire?
Yes, with a kit that turns the second switch into a remote. Lutron's Caseta kit and Leviton's no-neutral dimmer with a wire-free companion both work this way.1, 5
Does the Kasa 3-way switch work without a neutral?
No. TP-Link's FAQ says that if neither of your two boxes has a neutral, you will be unable to use the HS210.2
Is the Leviton D315S a no-neutral switch?
No. Leviton lists the D315S as neutral required.3
Does the Lutron Caseta on/off 3-way kit need a neutral?
Yes. The Amazon listing says the kit includes the PD-5ANS, and Lutron lists the PD-5ANS as needing a neutral connection.4
Turn off power at the breaker before you touch any switch. If you are not sure what is in your box, hire a licensed electrician.
Sources
- Lutron support: Caseta in-wall dimmers, read November 1, 2026. Quote: “If you do not have a neutral wire in the switch box, you must use either the PD-6WCL or PD-10NXD. ... Use with Pico remote for multi-location dimming”
- TP-Link neutral FAQ, read November 1, 2026. Quote: “If none: you will be unable to use HS210.”
- Leviton D315S product page, read November 1, 2026. Quote: “Neutral Required : Yes”
- Lutron Caseta switches support, read November 1, 2026. Quote: “PD-5ANS: Neutral-wire switch (neutral connection required)”
- Leviton DN6HD product page / spec sheet, read November 1, 2026. Quote: “Single-pole, and support for 3-way/multi-way applications with the wire-free DAWDC Anywhere Dimmer Companion ... (requires Decora Smart Wi-Fi Bridge)”
- Youngzuth's Amazon listing, read November 1, 2026.
- Prices and photos: Amazon product data, read November 2, 2026.
- Lutron: What is the Caseta Smart Hub, read November 1, 2026. Quote: “the control center for your Caseta smart home devices ... controlling devices wirelessly via the Lutron app ... scenes, schedules, and voice assistant control.”
- TP-Link FAQ: how to find the neutral wire, read November 1, 2026.