Retrofit Smart Switch

Smart control for your heaviest appliances

Name: LPF Retrofit HD Module 25A
Brand: Beakn
SKU: lpf-retrofit-hd-module-25a

A heavy-duty WiFi module built for your biggest loads — instant geysers, 2-ton ACs and heavy-duty water pumps. 25A relay, up to 4000W, with full app, voice and automation and no rewiring.

25ARelay

4000WMax load

16mmThin module

What the hardware does

Single 25A channelOne channel built for your single heaviest appliance.

4000W max loadRuns instant geysers, 2-ton ACs and heavy pumps directly.

16mm ultra-thinJust 16mm thick (52 × 56mm) — fits behind your board.

Isolated SMPSSafe, stable power with under 0.8W standby draw.

Surge protection2.5KV rated, tested up to 4KV — protects your load.

2-way switchingWorks with existing two-way wiring.

What the app does

Auto-off timerPut your instant geyser or 2-ton AC on a timer that fires even when switched on at the wall.

Safe Mode + WhatsApp alertCritical voltage protection for a 4000W load — disconnects above 280V or below 200V and sends a WhatsApp alert.

Schedules & sunrise/sunsetDaily schedules and GPS sunrise/sunset triggers, running locally even offline.

Energy & running hoursTrack the running hours and estimated cost of your heaviest appliance, with a full ON/OFF history.

Voice, NFC & shortcutsSiri, Google and Alexa, NFC tap actions and one-tap home-screen shortcuts.

Works from your wall switchYour existing switch still works — and the auto-off timer fires no matter how it's turned on.

Full specification

Module dimensions	52 × 16 × 56mm (H × W × L)
Operating voltage	240V AC, 50/60Hz
Channels	1
Relay rating	25A
Max load — resistive	4000W
Max load — inductive	2000W
Power supply	Isolated SMPS
Standby power	Less than 0.8W
Surge protection	2.5KV rated, tested to 4KV
2-way switching	Supported
Connectivity	WiFi — direct to cloud, no hub
Offline control	Yes — schedules, timers, wall switch
Voice assistants	Google, Alexa, Siri, HomeKit
Warranty	3 years

Common questions

Does the LPF Retrofit HD Module 25A need a neutral wire?

Yes. Every Beakn product needs a neutral wire at the switchboard. Most Indian homes built in the last 15 years have one. If you are not sure, send us a photo of your switchboard on WhatsApp and we will check it for you.

Does it work without internet?

Yes — schedules, timers, wall switch

Which voice assistants does it work with?

Google, Alexa, Siri, HomeKit.

Do I need a separate hub or gateway?

WiFi — direct to cloud, no hub

What warranty does it come with?

3 years

What power supply does it need?

It runs on 240V AC, 50/60Hz.