
Installation check required: confirm the model-specific terminal wiring for OK-03W5 with OKOS before installation. Do not use the product photograph, its printed schematic or the illustrative artwork as a wiring guide. A qualified electrician must use the confirmed wiring instructions for the exact supplied unit.
Before you buy
Lighting on/off control only. For compatible lighting circuits only, with on/off switching. Do not connect heavy-load appliances or inductive/motor loads such as fans or pumps. This is not a dimmer or fan-speed controller. LED-driver compatibility, startup/inrush current and the permitted lighting load must be checked for this exact model before installation; an amp marking is not a universal LED wattage allowance.

Three lighting groups. One composed room.
Bring three compatible lighting groups into OKOS Smart with a discreet 3-gang Wi-Fi module.
Neutral required. Qualified installation and load-compatibility checks required.

Set the rhythm of your day.
Use OKOS Smart timers and scenes to plan when compatible lights turn on or off.
App and voice services require the relevant network and account setup.

Keep a familiar way to switch.
External wall-switch inputs allow a compatible switch-based setup alongside smart control. Plan the fit before installation.
Neutral required. Switch compatibility and enclosure space must be checked by a qualified electrician.

OKOS Smart. Connected over Wi-Fi.
Connect to a 2.4 GHz Wi-Fi router for OKOS Smart app control, without a Zigbee gateway.
Alexa and Google Assistant control require compatible devices, supported account linking and internet access.

Choose the right fit before you begin.
3 gangs · Neutral required · AC 100–240 V, 50/60 Hz · 10 A max marked on product.
The marked current does not establish a per-channel allowance or LED wattage limit. Confirm lighting compatibility.

Smart, behind the scenes.
A retrofit concept for an existing Indian modular switchboard. Neutral, box clearance and switch compatibility need an electrician’s check.
Illustrative layout, not to scale. Rocker count does not represent the module channel count. Wire routing is not a terminal wiring guide.
Three lighting groups. One composed room.
Bring ceiling, wall and reading-area lighting into a more considered plan. The OKOS 3-Gang Wi-Fi Smart Switch Module provides three switched outputs for three compatible lighting groups.
Three lighting groups, planned around your space
Bring ceiling, wall and reading-area lighting into a more considered plan. The 3-gang module provides three switched outputs; choose the version that matches your lighting plan and verified load limits.
A familiar switch, with app control
Use OKOS Smart for on/off control, timers and scenes while retaining compatible manual wall-switch control.
A clear connection path
Connect directly to a compatible 2.4 GHz Wi-Fi router. A Zigbee gateway is not required.
Voice and routine compatibility
Alexa and Google Assistant control require compatible devices, supported account linking and internet access.
At a glance
| Model | OK-03W5 |
|---|---|
| Product type | Wired smart on/off switch module |
| Switched outputs | 3 |
| Wireless connection | 2.4 GHz Wi-Fi |
| App | OKOS Smart |
| Gateway | No Zigbee gateway required |
| Neutral | Required |
| Recorded input/output | AC 100–240 V, 50/60 Hz |
| Label current marking and limits | The product label marks input and output 10 A max. The label alone does not establish a per-channel allowance, combined-load limit or tested LED wattage limit. Confirm the permitted lighting load and LED-driver startup/inrush current for this exact model before installation; do not multiply the marked current by the number of outputs. |
| External wall-switch inputs | Present; switch type and wiring compatibility must be checked |
Before you install
The product label marks input and output 10 A max. The label alone does not establish a per-channel allowance, combined-load limit or tested LED wattage limit. Confirm the permitted lighting load and LED-driver startup/inrush current for this exact model before installation; do not multiply the marked current by the number of outputs.
Neutral is required. Use a qualified electrician to verify the load, switch compatibility, dimensions, enclosure space and wiring for the exact unit. This description is not a wiring guide. Do not substitute a diagram from another gang count or wireless variant.
Practical installation and everyday use
App OFF and wall-switch control are not safe isolation
App OFF is a control command, not electrical isolation. The wall switch connects to the module's control inputs; it must not be treated as an independent fail-safe mechanical bypass. For electrical work, isolate the circuit at the appropriate isolating device and have a qualified electrician verify absence of voltage.
Review the connection requirements and lighting restrictions before ordering. Exact dimensions and permitted LED-driver loads must be confirmed for the supplied model.

What affects response time?
Response varies with radio signal, router or gateway connection, internet/cloud services when used, and LED-driver start-up. Wall-switch and app commands use different paths. No fixed millisecond delay, zero-delay performance, or guaranteed offline behavior is promised.

Plan the installation
Neutral is required. Check the actual module, clips, leads and wiring against the available box clearance. A 6- or 8-module faceplate does not guarantee fit. Confirm switch type and compatible lighting load. Installation must be by a qualified electrician with power isolated and verified dead; this checklist is not a wiring or scale drawing.

Choose the right channel count
1, 2, 3 and 4 gang mean that many separately switched lighting channels, not pack quantity. More channels do not establish a safe combined load. Every connected lighting group must meet the exact model's verified limits.
No exact terminal wiring diagram is provided here for this 3- or 4-gang model. Obtain the confirmed wiring instructions for the exact unit from OKOS. Decorative retrofit scenes are not wiring guides.
1 year warranty against any manufacturing defects.
FAQs
What does 3-gang mean for this module?
It identifies three switched outputs for three compatible lighting groups. Gang count is not a pack quantity and does not multiply the current rating. The connected lighting and wiring must be suitable for this model.
Which app does it work with?
It works with OKOS Smart. The Wi-Fi version connects through a compatible 2.4 GHz router.
Do I need a hub, and will it work on 5 GHz Wi-Fi?
A Zigbee gateway is not required. The module uses 2.4 GHz Wi-Fi, not a 5 GHz-only network. Check the router setup and signal at the installation position.
Can I keep using my wall switch?
External wall-switch connections support a compatible manual-control installation. Have an electrician confirm the switch type, wiring and available space. The exact switch operating mode must be checked; do not assume every toggle, rocker, push-button or two-way arrangement is supported.
Does it need a neutral wire, and will it fit my switchboard?
Yes, neutral is required. Have a qualified electrician check the exact module dimensions, enclosure depth, wiring space and switch compatibility. Universal switchboard fit is not promised. Installation check required: confirm the model-specific terminal wiring for OK-03W5 with OKOS before installation. Do not use the product photograph, its printed schematic or the illustrative artwork as a wiring guide. A qualified electrician must use the confirmed wiring instructions for the exact supplied unit.
Can I use timers, scenes and voice control?
OKOS Smart timers and scenes are supported for this Wi-Fi model. Alexa and Google Assistant control require compatible devices, supported account linking and internet access. Scene actions depend on the other devices and integrations used.
Can it dim lights or control fans and appliances?
For compatible lighting circuits only, with on/off switching. Do not connect heavy-load appliances or inductive/motor loads such as fans or pumps. This is not a dimmer or fan-speed controller. LED-driver compatibility, startup/inrush current and the permitted lighting load must be checked for this exact model before installation; an amp marking is not a universal LED wattage allowance.
Is the 10 A maximum available on every output?
The product label marks input and output 10 A max. The label alone does not establish a per-channel allowance, combined-load limit or tested LED wattage limit. Confirm the permitted lighting load and LED-driver startup/inrush current for this exact model before installation; do not multiply the marked current by the number of outputs.
Which exact model is this listing for?
This listing is for the OKOS 3-gang Wi-Fi module, model OK-03W5. It is not the Zigbee version. Choose the gang count and wireless version required for your installation.
