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Nexa Retrofit 4 Switch 1 Fan — product pageDesigned page · specs & gallery
Overview
Nexa Retrofit 4 Switch 1 Fan
The Nexa Retrofit 4+1 is a WiFi smart switch module combining four switch channels and one capacitive fan regulator in a single unit. It installs behind your existing switchboard in approximately 15 minutes — no new wiring, no new switch plates, no civil work — and adds full app control, voice control, scheduling, and scene automation to four lights and one fan simultaneously.
It is purpose-built for the living room: one module replaces the need for four separate smart switches plus a separate smart fan regulator. The physical switches on your board keep working exactly as before; you simply gain a full layer of smart control on top.
The Nexa 4+1 runs on Beakn's own in-house platform — not Tuya or any white-label system — and comes with all 20 app features included free, with no subscription, ever.
Features
Fan Speed Control (unique to Nexa combo variants)
•Capacitive regulator — no buzzing or humming, unlike resistive regulators
•5 speed steps — controllable by app, voice command, schedule, or scene
•Schedulable fan speed: e.g. drop to step 2 at midnight as the room cools; rise to step 4 at 5 AM before waking
•Fan speed can be embedded in multi-step routines and one-tap scenes
•Supports fans up to 80W
Switch Channels
•Four independent 10A relay channels
•Each channel independently controllable by app, voice, schedule, or physical switch
•2-way switching supported on all channels — works alongside existing multi-way wiring
20 App Features — Included Free, No Subscription
Automation (8)
•Schedules for any day and time
•Auto-off timers (fire even when switched on at the wall)
•Countdown timers
•Sunrise/sunset triggers
•Multi-step routines
•One-tap scenes
•Sensor-driven workflows
•Scene-trigger conversion (a physical wall press fires a scene)
Safety (3)
•Safe Mode voltage protection: disconnects enrolled loads if voltage rises above 280V or drops below 200V
•Lock Room alerts: notifies you if a locked switch is toggled manually
•Full offline mode: core functions run locally without internet
Monitoring (4)
•Running-hours tracking per channel
•Estimated energy cost per channel
•Full ON/OFF history
•Intelligent usage reminders
Convenience (5)
•Siri Shortcuts with Apple Focus Modes and CarPlay
•Google Assistant integration
•Amazon Alexa integration
•NFC tag control
•Home-screen shortcuts
Platform & Connectivity
•Direct-to-cloud WiFi — no hub, no bridge required
•Beakn's own platform — in-house app, cloud, and firmware; not Tuya or white-label
•Indian technical support
•Offline resilience: wall switches, schedules, and timers continue working without internet; only remote access from outside the home requires internet
What's in the box
What is NOT required
•No new wiring or conduits
•No drilling or plastering
•No new switch plates
•No hub or additional hardware
Compatibility
Use Cases
Primary use case — Living room with four lights and one fan
The 4+1 is the definitive smart living room module. Four ceiling or wall lights — main light, accent, reading, décor — plus the ceiling fan, all controlled from one module, one app, and one voice command.
Example automations:
•"Good morning" scene: all four lights on, fan at step 3
•Midnight wind-down: lights off, fan steps down to step 2
•Pre-wake routine at 5 AM: fan rises to step 4 before the alarm
•Sunset trigger: living room lights come on automatically at dusk
•Auto-off timer: fan and lights shut off 30 minutes after everyone leaves
•NFC tag at the front door: one tap turns off all four lights and the fan when leaving
Other suitable spaces
•Large master bedroom with multiple lighting circuits and a ceiling fan
•Open-plan dining + living area where multiple light zones and a fan share one switchboard
•Any room with four independently switched loads plus a ceiling fan on the same board
Specifications
| Channels | 4 switch + 1 fan regulator |
|---|---|
| Relay rating (switch channels) | 10A per channel |
| Max load — incandescent / resistive | 800W per channel |
| Max load — LED | 120W or 6 units per channel |
| Max load — inductive | 400W per channel |
| Fan regulator type | Capacitive, 5-step |
| Fan regulator max load | 80W |
| Operating voltage | 240V AC, 50/60Hz |
| Neutral wire | Required |
| Module thickness | 23mm |
| Power supply | Isolated SMPS |
| Standby power | < 0.8W |
| Surge protection | 2.5KV rated, tested up to 4KV |
| 2-way switching | Supported |
| Connectivity | WiFi — direct to cloud, no hub required |
| Offline control | Yes — schedules, timers, and wall switch work without internet |
| Voice assistants | Google Assistant, Amazon Alexa, Apple Siri |
| App features | 20, included free — no subscription |
| Warranty | 3 years |
| Install time | ~15 minutes |
| Free installation | Available in 8 cities |
Installation
Installation & Wiring
What is required
•A neutral wire must be present at the switchboard — this is mandatory for all Nexa variants. Most Indian switchboards already have one; your electrician confirms during installation.
•An existing standard switchboard with sufficient depth for the 23mm module
Installation process (approximately 15 minutes)
1.Electrician opens the existing switchboard
2.The 23mm Nexa 4+1 module is placed behind the existing switches
3.Wiring is connected to the module terminals (4 switch channels + 1 fan channel + neutral + live)
4.Board is closed; existing switch plates remain unchanged
5.Module is configured on the Beakn app over WiFi
2-way switching
Supported on all switch channels. If your existing wiring includes 2-way (two-switch) configurations for any channel, the Nexa 4+1 works with it without modification.
Free installation
Available in 8 cities. Check Beakn's website or app for the current city list.
Post-installation
•Physical switches continue to work normally at all times
•App and voice control are added on top
•Schedules and timers run locally on the module — they work even during internet outages
User Manual
Overview
The Nexa Retrofit 4+1 is a WiFi smart switch module combining four switch channels and one capacitive fan regulator in a single unit.
Installation & Wiring
What is required
•A neutral wire must be present at the switchboard — this is mandatory for all Nexa variants. Most Indian switchboards already have one; your electrician confirms during installation.
•An existing standard switchboard with sufficient depth for the 23mm module
What is NOT required
•No new wiring or conduits
•No drilling or plastering
•No new switch plates
•No hub or additional hardware
Installation process (approximately 15 minutes)
1.Electrician opens the existing switchboard
2.The 23mm Nexa 4+1 module is placed behind the existing switches
3.Wiring is connected to the module terminals (4 switch channels + 1 fan channel + neutral + live)
4.Board is closed; existing switch plates remain unchanged
5.Module is configured on the Beakn app over WiFi
2-way switching
Supported on all switch channels. If your existing wiring includes 2-way (two-switch) configurations for any channel, the Nexa 4+1 works with it without modification.
Free installation
Available in 8 cities. Check Beakn's website or app for the current city list.
Post-installation
•Physical switches continue to work normally at all times
•App and voice control are added on top
•Schedules and timers run locally on the module — they work even during internet outages
Features
Fan Speed Control (unique to Nexa combo variants)
•Capacitive regulator — no buzzing or humming, unlike resistive regulators
•5 speed steps — controllable by app, voice command, schedule, or scene
•Schedulable fan speed: e.g. drop to step 2 at midnight as the room cools; rise to step 4 at 5 AM before waking
•Fan speed can be embedded in multi-step routines and one-tap scenes
•Supports fans up to 80W
Switch Channels
•Four independent 10A relay channels
•Each channel independently controllable by app, voice, schedule, or physical switch
•2-way switching supported on all channels — works alongside existing multi-way wiring
20 App Features — Included Free, No Subscription
Automation (8)
•Schedules for any day and time
•Auto-off timers (fire even when switched on at the wall)
•Countdown timers
•Sunrise/sunset triggers
•Multi-step routines
•One-tap scenes
•Sensor-driven workflows
•Scene-trigger conversion (a physical wall press fires a scene)
Safety (3)
•Safe Mode voltage protection: disconnects enrolled loads if voltage rises above 280V or drops below 200V
•Lock Room alerts: notifies you if a locked switch is toggled manually
•Full offline mode: core functions run locally without internet
Monitoring (4)
•Running-hours tracking per channel
•Estimated energy cost per channel
•Full ON/OFF history
•Intelligent usage reminders
Convenience (5)
•Siri Shortcuts with Apple Focus Modes and CarPlay
•Google Assistant integration
•Amazon Alexa integration
•NFC tag control
•Home-screen shortcuts
Configuration
Platform & Connectivity
•Direct-to-cloud WiFi — no hub, no bridge required
•Beakn's own platform — in-house app, cloud, and firmware; not Tuya or white-label
•Indian technical support
•Offline resilience: wall switches, schedules, and timers continue working without internet; only remote access from outside the home requires internet
FAQ
What rooms is the Nexa 4+1 best suited for?
It is purpose-built for a living room with four lights and one ceiling fan — the most common living room switch configuration in Indian homes. It also suits large bedrooms or any space with four independently switched loads plus a fan on one board.
Can I schedule fan speed changes?
Yes. The 5-step capacitive fan regulator supports full scheduling. Example: set the fan to step 2 at midnight and step 4 at 5 AM. Fan speed can also be part of scenes and multi-step routines. This fan scheduling capability is unique to Nexa combo variants — no other Beakn range offers it.
Does it require a neutral wire?
Yes. A neutral wire must be available at the switchboard. All Nexa variants require a neutral. The vast majority of Indian switchboards have one; your electrician will confirm during the ~15-minute installation.
Will my existing switches still work if the internet is down?
Yes. Physical wall switches always work. Schedules and auto-off timers run locally on the module. Local app control on the same WiFi network also continues. Only remote access from outside the home — controlling the module from another network — requires an internet connection.
Is there a subscription fee?
No. All 20 app features are included free, permanently. There is no monthly fee, no premium tier, and no in-app purchases.
Can the Nexa 4+1 control my AC or geyser?
No. The standard Nexa 10A channels are rated for lights, fans, and general loads. For an AC or geyser, use the Nexa HD 25A (or the HD 25A + Power Monitor for energy tracking). ACs require 16A or above; do not connect them to the 10A Nexa channels.
What is the maximum fan wattage it supports?
The capacitive fan regulator supports fans up to 80W. Standard ceiling fans are typically 40–75W and are well within this limit.
What is the maximum load per switch channel?
•Incandescent / resistive: 800W per channel
•LED lighting: 120W or 6 LED units per channel
•Inductive loads: 400W per channel
Does it need a hub or bridge?
No. The Nexa 4+1 connects directly to your home WiFi and to Beakn's cloud — no hub, bridge, or additional hardware is required.
Is there surge protection?
Yes. The module is rated at 2.5KV and has been tested up to 4KV.
How much power does it use on standby?
Less than 0.8W — negligible running cost when loads are off.
Can I use it with Alexa, Google, and Siri?
Yes. All three voice assistants are supported — Google Assistant, Amazon Alexa, and Apple Siri (including Siri Shortcuts with Apple Focus Modes and CarPlay).
Is this Tuya-based?
No. The Nexa 4+1 runs entirely on Beakn's own in-house platform — prop