Introduction

The lightwaverf Smart Dimmer (L22 / L22WH) is a versatile device that allows you to control your lights wirelessly and effortlessly. With its sleek design and advanced features, it is the perfect addition to any smart home setup.

Instructions

1. Ensure that you have a compatible light fixture and wiring setup for the Smart Dimmer.
2. Turn off the power to the light fixture at the circuit breaker before installation.
3. Remove the existing switch or dimmer from the wall.
4. Connect the wires from the wall to the Smart Dimmer according to the provided wiring diagram.
5. Securely mount the Smart Dimmer onto the wall using the provided screws.
6. Restore power to the light fixture at the circuit breaker.
7. Download and install the lightwaverf app on your smartphone or tablet.
8. Follow the app's instructions to connect the Smart Dimmer to your home's Wi-Fi network.
9. You can now control your lights using the app or voice commands if integrated with a compatible voice assistant.

Preparation

Installation
If you plan to install this product yourself, please follow the electrical wiring instructions carefully to ensure the product is installed safely, if in any doubt please consult a qualified electrician.
It is important to install this product in accordance with these instructions. Failure to do so may risk personal safety, create a fire hazard, violate the law and will also void your warranty. LightwaveRF Technology Ltd will not be held responsible for any loss or damage resulting from not correctly following the instruction manual.
IMPORTANT

• Any electrical installation must comply with Building Regulations, BS 7671 (IET Wiring Regulations) or local equivalent.
• If conducting an insulation resistance test, any hard-wired Lightwave devices must be disconnected from the mains, or damage to the unit may occur.

You will need

• A back-box with a minimum depth of 35mm
• Suitable electrical screwdrivers
• Suitable dimmable lamps (bulbs)
• Knowledge of how to safely turn off/on mains electricity
• Your Link Plus, smartphone and dimmer

Back box and spacers 
This Lightwave smart dimmer requires a 35mm deep back box in which to mount it. If you have a back box that is shallower than 35mm, then the Lightwave spacer included can be used to provide 7mm of extra clearance from the wall. 
 

Compatible lamps

• Mains voltage incandescent lamps (max 200W)
• GU10 / HI spot halogen lamps (max 200W)
• Most dimmable LEDs (max load varies by lamp see www.lightwaverf.com for guidance)

Not compatible with

• Wire wound transformers (generally older style)
• Electric motors
• CFLs and CFL tubes
• Incandescent lamps under 10W

LED Lamp compatibility
Lightwave dimmers are designed to work with the majority of dimmable LEDs, but, as every lamp can behave differently, it is advisable to choose variants that have been tested and proven to work well. If you plan to use LEDs, we strongly recommend that you consult our compatibility chart . The LEDs must be dimmable (not all varieties are), and you should not exceed the maximum loading recommendations provided on the compatibility chart or damage could occur.

Specification

• RF frequency: 868 MHz 
• Input rating: 230V~ 50Hz 
• Output rating: 200W max (per gang)
• Incandescent Load:10W min 200W max (per gang) 
• Back Box Depth: 35mm min
• Earthing Requirement: Not essential (double insulated)
• Circuit Type: non-SELV
• Standby Energy Use: Less than 1W 
• Wiring: Neutral wire not essential
• Warranty: 2 year standard warranty 

Installing the Dimmer

Carefully follow the instructions in this section in order to install the dimmer. Please remember that live electricity is dangerous. Do not take any risks. For other advice, please contact our dedicated technical support team at www.lightwaverf.com. 

• Turn off the mains electricity
  Turn off the mains power supply to your existing lighting circuit at the consumer unit. 
• Remove the existing Switch
  Unscrew the existing light-switch and remove the wires. It is often a good idea to take a quick photo of the existing wiring configuration. This can help you to remember which wires connect to which terminals if there are more than two, or if they are not distinctly labelled. The existing wiring should be color coded and arranged as per the wiring diagram provided in these instructions, however, please be aware that not all existing wiring will conform to this standard and may differ.
• Remove the Faceplate 
  Remove the faceplate from the Lightwave Dimmer by carefully inserting a screwdriver into the small slot located at the bottom edge of the cover.
• Wire the Dimmer
  Carefully wire the Dimmer as shown in the diagram. Be aware that existing cables can vary in color and may not always be correctly labelled. If in any doubt, always consult a qualified electrician. Replace the faceplate by hooking it onto the top edge of the Dimmer and clipping in the bottom. Check the wiring and load; remember not to exceed the 200W incandescent load per gang and to only use recommended dimmable LED lamps.
• Replace the Faceplate
  Replace the faceplate by hooking it onto the top edge of the Dimmer and clipping in the bottom. 

Calibration
Once the dimmer has been installed, lamps added to the circuit and the power switched on, it will enter calibration mode. This mode calculates the appropriate settings and dimming range to maximize compatibility with the lamps being used on the circuit. 

Automatic calibration 
If the dimmer has not previously been calibrated, it will automatically calibrate itself to the lamps detected on the circuit after 5 seconds. If the dimmer has been calibrated previously, these settings will be restored unless the on button is pressed within 5 seconds to overwrite them with a new calibration (recommended if lamps are changed). Auto calibration is denoted by flashing green LEDs.

Manual calibration (use in the event of persistent lamp flicker or instability)
Pressing the off button within 5 seconds of introducing power to the Dimmer will initiate manual calibration. This is initially denoted by flashing green and red LEDs. Pressing the on and off buttons now will extend or shorten the lower dimming limit. Pressing both buttons together will save the setting. Next, flashing green and blue LEDs denote that pressing the on and off buttons will now alter the upper limit. Press both buttons to save this setting.

Linking the Dimmer

To be able to command the Dimmer, you will need to link it to the Link Plus. Please follow the in-app instructions which will explain how to link devices.

• Using the Lightwave App, select ‘add device’, and follow the in-app instructions.

• On the Dimmer, press and hold down one pair of  ‘on’ / ‘off’  buttons  until  the LEDs flash blue and red alternately.  The Dimmer is now in linking mode. 

  

• The LED on the Dimmer will flash blue to confirm that it is linked to the App. 

Unlinking the Dimmer
To unlink the Dimmer and clear the memory, enter linking mode by holding down both on/off buttons until the LED flashes red. Release the buttons, then hold the off button until the LED flashes rapidly to confirm that the memory has been cleared. On clearing the memory, automatic calibration will be initiated.

Locking the Dimmer 
The Dimmer can be ‘locked’ using the App so that the manual buttons will not operate it. If it is locked on, then the Dimmer will not turn off manually. A locked dimmer is signified by a slow flashing magenta LED. To lock / unlock the Dimmer, press the ‘lock’ button on the Smartphone App. Clearing the memory will remove the lock.

Change the colour of the indicator LED
The colour of the LED indicator lights on the Dimmer can be changed or the LED dimmed using the Lightwave App. See the App for more details.

Error reporting   
A permanently flashing red LED indicates that a software or hardware error has been encountered. Press the on/off button to reset the indicator LED.  If the error light persists, please contact Lightwave support via www. lightwaverf.com/support.

Firmware updates
Firmware updates are over the air software improvements that keep your device up to date as well as providing new features. Updates can be approved from the App before being implemented, and generally take 2-5 minutes. The LED will flash cyan in colour during an update. Please do not interrupt the process during this time.

Description

The LightwaveRF Smart Dimmer (Model L22 / L22WH) is part of their Smart Series, offering a stylish way to begin automating your home lighting. It features compatibility with Apple HomeKit, enables two-way communication, and comes with soft start dimmers. This smart dimmer is designed for easy installation without the need for additional cabling. An optional spacer is provided to offer extra clearance if needed. It's important to note that for app and voice control functionality, the Lightwave Link Plus hub is required, and the LED lamps used must be dimmable. The product is available in both stainless steel and white metal finishes​​.