Introduction to the Ajax LightCore LightSwitch 2‑Way Relay
The Ajax LightCore (LightSwitch) 2‑Way Wireless Relay 230V (model 63116.142.NC) is a compact in‑wall module designed to convert standard European 55 light switches into contactless smart switches when paired with Ajax LightSwitch touch buttons and an Ajax hub. Built for retrofit and new installations alike, this relay offers touch activation without the need for a neutral wire, wide compatibility with Ajax hubs and range extenders, and protections that make it suitable for everyday residential and light commercial lighting control.
Key features
- Contactless touch activation (detects a hand within approximately 15 mm).
- No neutral required, installs using live only and fits standard European 55 backboxes.
- Load control from 5 W up to 600 W (300 W per segment for 2‑gang installations); includes capacitor for very low power lamps.
- Encrypted Jeweller two‑way radio with up to about 1,100 m open‑space range; compatible with Hub Plus, Hub 2, Hub Hybrid and ReX extenders.
- Built‑in current and temperature protection — device cuts output and sends a notification on fault.
Detailed specifications and benefits
The LightCore 2‑Way Relay is purpose‑built for 230 V ~ 50 Hz systems and controls a surprisingly broad range of loads. Rated to manage 5–600 W overall (or 300 W per segment in 2‑gang configurations), it supports traditional incandescent lamps, mains LED drivers and many common low‑power lighting solutions thanks to an included capacitor that stabilises operation at very low wattages.
- Power:230 V ~ 50 Hz (no neutral required).
- Average consumption:Up to 200 mW.
- Load capacity:5–600 W (300 W per segment on 2‑gang).
- Protection:Current cut‑off above ~2.6 A and temperature cut‑out above +60 °C.
Benefit: the no‑neutral installation and compact European 55 form factor mean electricians can retrofit the module into most standard switch backboxes without extensive rewiring — a major advantage when modernising older properties.
Ajax’s proprietary Jeweller protocol offers encrypted two‑way communication between the LightCore relay and Ajax hubs. The relay supports region‑dependent frequency bands and can achieve up to about 1,100 m of open‑space range when unobstructed. In practical indoor deployments, range extenders such as ReX significantly improve reliability across larger homes or multi‑room installations.
- Protocol:Jeweller two‑way (encrypted).
- Range:Up to 1,100 m open space; improved indoor reach with ReX extenders.
- Compatible hubs:Hub Plus, Hub 2, Hub 2 Plus, Hub Hybrid, ReX, ReX 2.
Benefit: dependable, low‑latency control and secure communications suitable for integration with Ajax automation scenes and security workflows.
Designed to fit a European 55 backbox, the relay’s compact footprint (approx. 76.3 × 72.3 × 29.2 mm) and light weight (approx. 48–54 g) make installation unobtrusive. It is rated IP20 for indoor use and operates across typical indoor temperature ranges.
- Form factor:European 55 (fits standard backbox).
- Dimensions:Approx. 76.3 × 72.3 × 29.2 mm.
- Operating temp:−10 °C to +40 °C; humidity up to 75% RH non‑condensing.
- IP rating:IP20 (indoor use).
Benefit: the relay installs behind the switch face, preserving the interior aesthetics while enabling contactless operation.
The relay includes current and temperature protection that disables output and notifies the hub in case of overcurrent or overheating — a useful safety layer for unattended lighting circuits. It is intended for 230 V systems; do not use this 230 V model on 120 V systems without appropriate conversion or a model designed for the target voltage. Check the product packaging for CE/UKCA markings and follow local wiring regulations. Installation should be carried out by a qualified electrician.
- Current protection:trips above ~2.6 A.
- Temperature protection:cuts output at > +60 °C and sends notifications.
- Compliance:CE / UKCA where applicable (verify packaging).
Note: Warranty information for this SKU does not specify an included manufacturer warranty; confirm current warranty and return terms with your seller before purchase.
Use cases and scenarios where the Ajax LightCore excels
The LightCore 2‑Way Relay is particularly well‑suited to several common scenarios:
- Retrofit contactless control:Homes with legacy wiring that lack a neutral conductor can still be upgraded to contactless smart switches without replacing the switch or rewiring the circuit.
- Two‑way (va‑et‑vient) circuits:The relay supports two‑way control setups so lights can be operated from two locations — common in hallways and stairwells.
- Integration with security and automation:When paired with an Ajax hub, the LightCore can participate in automation scenes (for example, switching lights on during an alarm or when presence is detected) while remaining part of the secured Ajax ecosystem.
- Light commercial installations:Small offices, boutique retail spaces or hospitality rooms benefit from discreet, behind‑the‑switch smart control without visible components that change the interior design.
- Energy management:Because the relay can control a wide range of loads and report faults, it helps facilities managers and homeowners manage lighting energy use and detect abnormal conditions quickly.
Comparisons with similar products on the market
When considering smart in‑wall relays, buyers typically compare features such as neutral‑free operation, load capability, wireless range, ecosystem compatibility and safety protections. Here’s how the Ajax LightCore stands out and where other options may be preferred:
- No neutral required:Many smart relays (particularly low‑cost consumer models) require a neutral wire, which complicates retrofits. LightCore’s live‑only design makes retrofitting easier. If a neutral is available, some alternative relays may offer additional features like dimming or more granular power telemetry.
- Load range:The LightCore handles up to 600 W, which is higher than many compact smart relays designed for LED loads only. If you need high horsepower switching for loads above 600 W, select a dedicated contactor or a relay rated for higher currents.
- Ecosystem and security integration:LightCore is designed for the Ajax ecosystem, offering encrypted communications and integration with Ajax hubs and security automation. Generic Wi‑Fi or Zigbee relays may integrate with broader smart home platforms but typically lack hardened security features and professional monitoring options that Ajax provides.
- Range and reliability:The Jeweller protocol and compatibility with ReX extenders allow robust communication in larger homes. In contrast, Wi‑Fi based relays depend on the home Wi‑Fi network and may suffer from latency or coverage problems in some setups.
- Professional installation:Where other consumer relays aim for DIY users, LightCore’s design and safety features make it more appealing for electrician installation and commercial use, although skilled DIYers may still install it following regulations.
Customer feedback and installer impressions
While individual reviews vary by installation and expectations, common themes emerge from installers and early users:
- Installer feedback:Electricians frequently note that the live‑only installation and European 55 form factor save time on retrofits and avoid the need to fish in a neutral conductor. The compact size makes it straightforward to tuck behind existing switch plates.
- Homeowner impressions:Users appreciate the contactless touch activation for hygiene and convenience, especially in high‑traffic areas like kitchens and hallways. Integration with Ajax automation and security is often cited as a strong benefit for those already invested in the Ajax ecosystem.
- Edge cases:A few users report needing to check compatibility with certain very low‑power LED drivers even though a capacitor is included; in these cases, testing before full rollout is recommended.
Representative comments (paraphrased):
- "Upgrading our hallway switches without rewiring was quick — fits behind the old faceplates and the touch buttons look clean."
- "Works well with our Hub 2 and ReX extender — no dropouts across two floors."
- "Make sure your electrician checks lamp driver compatibility if you have very low‑wattage LEDs."
Conclusion: Why choose the Ajax LightCore LightSwitch 2‑Way Relay?
The Ajax LightCore LightSwitch 2‑Way Relay (63116.142.NC) is an attractive choice for homeowners, installers and light commercial operators seeking a discreet, reliable way to add contactless smart control to European switches without the complexity of a neutral wire. Its broad load range, built‑in protections, encrypted two‑way communications and tight integration with Ajax hubs make it a robust option for those who prioritise safety, reliability and ecosystem cohesion over single‑vendor independence.
Whether you are retrofitting a period property, standardising lighting control across a small business, or integrating lights into a wider Ajax automation and security system, the LightCore provides practical benefits: minimal intrusive wiring, proven protections, and compatibility with Ajax range extenders to ensure reliable operation across larger properties. Before purchasing, confirm the device’s compliance markings, verify that it suits your regional voltage and radio band, and discuss any specific lamp compatibility concerns with your installer.
Suggested retail price: 59.99 (confirm local currency and tax). Supplier SKU: LIGHTCORE(2‑WAY) - 63116.142.NC. In short, if you want a professional‑grade, compact relay for contactless smart lighting in 230 V European installations, the Ajax LightCore LightSwitch 2‑Way Relay is a strong, practical choice.
