Control the connected lights in the app.
See the light state and operate it from the Ajax app. Local touch control also works without a hub; app control and automation require a compatible hub and a working system connection.
LightSwitch · North American [120] range
LightSwitch (3-way) [120] Jeweller
Use a 3-way mechanism at an end of a multi-location lighting circuit, such as a corridor or stairway.
Matching components and a frame where needed. Choose the layout, finish and number of complete assemblies.
![LightSwitch (3-way) [120] Jeweller](https://ajax.systems/cdn/upload/keyvisual_ls_120_series_3656671fdd@2.jpg)
Choose layout, finish and quantity
Made for your space
Your wall assembly.
Choose what each position does. We include every matching part in one complete assembly.
North American [120] range · 120 V, 60 Hz. All parts below belong to this range. Confirm the regional electrical system before ordering.
1Choose the layout.
A single unit uses a Solo front. No separate frame is needed.
Layout preview · colours are approximate
2Choose the function for position 1.
3 functions
This configures one wall location. Multi-location lighting also needs matching end switches and a verified wiring design. We check the circuit before confirming your order.
4Your complete assembly.
3-way · 120 V
North America · 120 V — Single unit — White — 1. 3-way · 120 V
Complete assembly price on request
Included components
Matching cores, finished fronts and a frame where needed. Quantities below cover one complete assembly.
- 1 × LightCore (3-way) [120] JewellerPosition 1
- 1 × SoloButton (1-gang) [120] · WhitePosition 1
What your installation needs
- One complete wall assembly. Installation and wall boxes are confirmed for your project.
- North American [120] wall system: 120 V, 60 Hz. Uses its own cores, fronts and frames. It cannot be combined with European [55] parts. Touch control works without a hub; app control needs a compatible regional Ajax hub.
- Multi-location lighting needs the matching end/intermediate switches and a verified wiring design. This assembly covers one wall location.
Complete assemblies in your kit. Price, availability and installation are confirmed before ordering. No payment is taken here.
The equipment price includes all matched cores, fronts and frames. If an exact component price is unavailable, we quote the complete assembly before you order.
Control the same light along your route.
LightSwitch (3-way) [120] Jeweller is designed for a lighting arrangement with control from multiple positions. It brings Ajax touch control into routes such as hallways, stairs or rooms with more than one entrance. The exact switch type is matched to the circuit design and the other controls in that arrangement.
Key features. At a glance.
Big touch-sensitive panel
Contactless lighting control
8 colors
No need for neutral wire
LED backlight
Lighting control via a smartphone
Compatible with light bulbs
Incandescent: up to 500 W
CFL/LED: up to 250 W
Protection for the curious little ones
Power adjustment
Remote control and configuration
Up to 1,100 m1
of communication distance with an Ajax hub
Horizontal frames
4 frame sizes for combining multiple switches
In-app notifications and event log
10:00Ajax
- 1In an open space Range is measured in open space; walls and installation conditions reduce it.
Designed for real spaces.
LightSwitch (3-way) [120] Jeweller
Every detail has a purpose.
Explore the function, installation and system requirements of LightSwitch (3-way) [120] Jeweller.
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The same light, from either end.
Choose the right electrical function.
Use a 3-way mechanism at an end of a multi-location lighting circuit, such as a corridor or stairway.
- 120 V, 60 Hz; no neutral wire is required at the switch.
- Maximum load: 500 W incandescent or 250 W LED; maximum current 4.2 A.
- The circuit needs its other compatible end switch and suitable traveller wiring. Choosing one wall assembly does not include every switch required for the whole circuit.
Current and temperature protection disconnect the load and notify the app when triggered. For LED loads below approximately 20 W, follow the manual’s instructions for the supplied capacitor. Compact fluorescent lamps are not recommended in the manual; smart lamps and lamps with built-in controllers are unsupported.
Easy to find. Easy to use.
A touch, or a hand nearby.
Touch the large panel, including with a gloved hand, or bring your hand within 15 mm for contactless operation.
Useful controls, wherever you are.
Choose when touch control is available.
Enable childproofing in the app to disable local touch operation. App commands and configured scenarios remain available.
Switch off after the time you choose.
Set an automatic switch-off timer for lights that should not stay on indefinitely. The selected interval is configured in the Ajax app.
Let one action start a routine.
Use the switch as a trigger for other compatible Ajax automation devices. Each controlled load needs its own suitable actuator; a lighting output is not a direct curtain or blind motor controller.
Lighting that follows your routines.
Scenarios run through a compatible Ajax hub. Temperature, humidity and CO₂ triggers also need the appropriate sensor; humidity and CO₂ scenarios require LifeQuality.
Make a home look occupied.
Schedule connected lights to turn on and off while you are away. Choose the rooms and times in the Ajax app, then check the routine at the property.
A secure link to your system.
Jeweller for events. Wings for updates.
Jeweller carries commands and events; Wings delivers firmware updates to this switch. Both have a specified range of up to 1,100 m in open space with a compatible hub or range extender.
Choose a compatible regional hub and radio version. Walls, metal and the mounting position affect coverage; test both Jeweller and Wings signal strength after installation. Loss-detection timing depends on the configured polling settings.
Reach the rooms your system needs.
Plan the radio path through the building.
A compatible range extender can connect a switch where the hub’s direct radio signal is insufficient. ReX 2 can use Ethernet as an alternative connection to the hub. Choose a supported combination and test it at the installed position.
Hub capacity, regional radio version and the required protocols determine the supported setup. On models with Wings, verify the firmware-update path as well as event communication.
Fit the assembly. Set up the light.
Match the circuit and the wall box.
A qualified electrician should isolate the mains and fit the matching [120] core, panel and frame using the exact model’s wiring diagram. The standard North American form factor is different from the European [55] range.
Indoor use only: −10 to +40 °C, up to 75% relative humidity without condensation, IP20. Check the actual lamp type and connected load.
Find the right light switch.
Compare LightSwitch models by the lights you want to control, the wiring at each position and whether you need dimming. European [55] and North American [120] models can be compared, but their voltage and components are not interchangeable.
Compare light switches →Every detail, in one place.
Components
- Relay
- Controls the power of a lighting appliance. LightCore (3-way) [120] Jeweller
- Touch-sensitive panels
- SoloButton (1-gang) [120] It is used when the switch is installed as a separate device. SoloButton consists of a front panel and a frame, coming as one component. CenterButton (1-gang) [120] It is used when the switch is installed between the device set. SideButton (1-gang) [120] It is used when the switch is installed on the right or left of the device set.
- Frames
- Frames for two, three, four, and five Ajax switches. Frame (2 seats) [120] Frame (3 seats) [120] Frame (4 seats) [120] Frame (5 seats) [120]
Configuration
- Single switch
- LightSwitch (3-way) [120] Jeweller is installed as a separate device.
- Combined switch
- LightSwitch (3-way) [120] Jeweller is combined as a set with other Ajax smart switches and installed into Frame side by side.
Communication
- Jeweller communication technology
- Two-way system communication for the functions specified for this model.
- Radio communication range
- up to 1,100 m Between the device and a hub (or a range extender) in an open space.
- Encrypted communication
- Encrypted device communication.
- Frequency hopping
- To prevent radio interference and jamming.
- Wings communication technology
- Two-way system communication for the functions specified for this model.
- Radio communication range
- up to 1,100 m Between the device and a hub (or a range extender) in an open space.
- Encrypted communication
- Encrypted device communication.
Key features
- Automation scenarios
- By arming/disarming; By schedule; By alarm; By temperature, humidity, or CO2 concentration*; By touching another LightSwitch / by pressing Button * Scenarios by humidity and CO2 concentrations are available when LifeQuality Jeweller is added to the system.
- Operation without a neutral wire
- LightSwitch (3-way) [120] Jeweller only needs a line (hot) wire to operate.
- Minimum load power
- 20 W The value is calculated for LED light appliances.
- Contactless touch-sensitive panel
- LightSwitch (3-way) [120] Jeweller is activated when a hand gets as close as 15 mm from the panel.
- Night backlight
- Optional, can be turned off in the device settings in the Ajax app.
- Protection against incompatible appliances
- Triggers if lighting appliances have insufficient power (up to 20 W). If protection is triggered, LightSwitch (3-way) [120] Jeweller turns off the load and sends a notification to Ajax apps. For low-power lighting appliances, the kit includes a capacitor.
Sabotage protection
- Protection against spoofing
- device authentication
- Communication loss detection
- after 36 s Detection time depends on the Jeweller or Jeweller/Fibra settings.
Power supply
- Power supply voltage
- 120 V~, 60 Hz The device does not need a neutral wire to operate.
- Average consumption
- up to 200 mW
- Maximum power
- up to 500 W for incandescent light bulbs up to 250 W for CFL/LED light bulbs For LightCore (3-way) [120] Jeweller.
- Maximum load current
- 4.2 A
- Overcurrent protection
- more than 5 A If protection is triggered, LightSwitch (3-way) [120] Jeweller turns off the load and sends a notification to Ajax apps.
- Temperature protection
- more than +60 °C If protection is triggered, LightSwitch (3-way) [120] Jeweller turns off the load and sends a notification to Ajax apps.
Operating parameters
- Operating temperature range
- from –10 °C to +40 °C
- Operating humidity
- Up to 75% with no condensation
- Protection class
- IP20
- Form factor of the switch
- NA form factor (120)
Dimensions
- Relay
- LightCore (3-way) [120] Jeweller — 98.4 × 41.9 × 33.4 mm
- Touch-sensitive panels
- SoloButton (1-gang) [120] — 115 × 71 × 10.6 mm CenterButton (1-gang) [120] — 114.4 × 45.5 × 10.6 mm SideButton (1-gang) [120] — 114.4 × 58 × 10.6 mm
- Frames
- Frame (2 seats) [120] — 115 × 117 × 6 mm Frame (3 seats) [120] — 115 × 163 × 6 mm Frame (4 seats) [120] — 115 × 209 × 6 mm Frame (5 seats) [120] — 115 × 255 × 6 mm
Weight
- Relay
- LightCore (3-way) [120] Jeweller — 69 g
- Touch-sensitive panels
- SoloButton (1-gang) [120] — 55 g; CenterButton (1-gang) [120] — 31 g; SideButton (1-gang) [120] — 34 g
- Frames
- Frame (2 seats) [120] — 22 g; Frame (3 seats) [120] — 28 g; Frame (4 seats) [120] — 35 g; Frame (5 seats) [120] — 41 g
What’s in the box
- LightSwitch (3-way) [120] Jeweller is a prefabricated device, with each component available for separate purchase. Components are easily installed by attaching to each other.
For your installation
- Regional product: North America. Confirm suitability for the property country before ordering.
- Confirm the supported control panel, device software and regional radio version; test coverage at the final installation position.
- The device is designed for indoor use only. A professional electrician should install the device.
- It is recommended to install a bundled capacitor to ensure stable operation of LightSwitch (3-way) [120] Jeweller and lighting appliance.
Complete your installation.
![LightSwitch (1-gang) [120] Jeweller](https://ajax.systems/cdn/upload/ls_120_one_gang_black_0542e451cc@2.png)
LightSwitch (1-gang) [120] Jeweller
This mechanism switches one circuit from one location. Select a 3-way end mechanism or 4-way intermediate mechanism when the wiring requires control from multiple locations.
![LightSwitch (4-way) [120] Jeweller](https://ajax.systems/cdn/upload/ls_120_four_way_black_20e624f8ea@2.png)
LightSwitch (4-way) [120] Jeweller
A 4-way mechanism is an intermediate switch, not a replacement for either 3-way endpoint. Select the other switches and suitable wiring for the complete circuit separately.