GEYER SMART · GS-D2CH · 2 CHANNELS

Two lighting zones.One smart dimmer.

A compact two-channel Wi-Fi dimmer module for independent ON/OFF and brightness control of two compatible lighting circuits, locally from push-buttons or remotely through GEYER Smart.

Explore the functions Technical specifications

2 channelsIndependent dimming

2 × 100 WLED at 230 VAC

18 mmSlim design

Dual-channel controlON/OFF & dimming

Flexible mountingWall box or DIN adapter

CONNECTED ECOSYSTEM

Amazon Alexa

Google Home

Tuya Smart

Smart Life

LIGHTING · DIMMING · AUTOMATION

Precise light control for two independent circuits.

GS-D2CH combines compact installation, local push-button control and remote dimming through the GEYER Smart app.

◐01

Two-channel dimming

Control and adjust the brightness of two compatible lighting circuits independently or together.

I/O02

Remote ON/OFF

Switch either channel on or off and adjust brightness from the GEYER Smart app.

↕03

Local push-buttons

A short press switches the light on or off; a long press adjusts brightness through the connected push-button.

◷04

Schedules & scenes

Create up to 30 programs per day and use weekly schedules, sunrise/sunset routines and preset lighting scenes.

COMPACT MODULE · TWO LIGHTING OUTPUTS

Smart dimming designed to fit behind the wall switch.

2 channelsNeutral requiredWi-Fi 2.4 GHzTRIAC dimming

GEYER SMART APP

Both lighting channels in one clear view.

Control each channel separately or together, adjust brightness, create schedules and lighting scenes, and share access with up to 20 users.

GEYER Smart control of both GS-D2CH channels — TOTAL & INDIVIDUAL CONTROL

GEYER Smart brightness control for one GS-D2CH channel — CHANNEL BRIGHTNESS

APPLICATIONS

Lighting that adapts to every space.

LIVING ROOM

Set separate brightness levels for ambient and main lighting.

BEDROOM

Control two lighting zones independently for comfort and relaxation.

HOLIDAY HOME / AIRBNB

Prepare welcoming lighting scenes and control them remotely.

SHOP / HOSPITALITY

Adjust two lighting circuits for different activities and times of day.

Use only compatible dimmable loads. Load suitability, required protection and wiring must be assessed by a qualified electrician, who performs installation with the power supply isolated.

TECHNICAL SPECIFICATIONS

Compact control for two dimmable lighting circuits.

A two-channel Wi-Fi dimmer with local push-button inputs, neutral conductor and flexible installation behind a switch or on a DIN rail using the appropriate adapter.

CEREDRoHS2 years

Input voltage100–240 VAC, 50–60 Hz

Maximum LED load2 × 100 W at 230 VAC · 2 × 60 W at 120 VAC

Channels2 independent dimming outputs

Dimming technologyTRIAC

Compatible loadsCompatible dimmable LED lamps

Neutral conductorRequired

Local controlMomentary push-buttons via S1 and S2

Wi-FiIEEE 802.11 b/g/n, 2.4 GHz

MountingWall switch box · DIN rail with suitable adapter

Dimensions39.2 × 39.2 × 18 mm

Ingress protectionIP20

Operating temperature−10 °C to +40 °C

ProgramsUp to 30 programs / day

Shared usersUp to 20

NotificationsPush notifications

Warranty2 years

ComplianceCE · RED 2014/53/EU · LVD 2014/35/EU · EMC 2014/30/EU · RoHS

INSTALLATION & PAIRING

Three essential steps.

Installation

Have the module connected behind the wall switch or with the suitable DIN-rail adapter by a qualified electrician, with the supply isolated.

App

Download GEYER Smart from the App Store or Google Play and connect the phone to a 2.4 GHz Wi-Fi network.

Pairing

Press and hold the reset key for about 10 s until the indicator light or connected lamp flashes rapidly, then add GS-D2CH in the app.

ELECTRICAL SAFETYInstallation, protection, conductor selection and load compatibility must be assessed by a qualified electrician. Isolate the power supply before installation or wiring.

WIRING & DIMENSIONS

Two outputs with local push-button inputs.

Connect supply L and N, lighting outputs L1 and L2, and optional momentary push-buttons to S1 and S2 according to the selected wiring diagram. The neutral conductor is required.

GS-D2CH wiring diagrams — Installation must be carried out by a qualified electrician.

GS-D2CH dimensions — 39.2 × 39.2 × 18 mm

FREQUENTLY ASKED QUESTIONS

The essential answers.

Can the two channels be controlled independently?+

Yes. Each output can be switched and dimmed separately, while total control is also available in the app.

Does GS-D2CH require a neutral conductor?+

Yes. A neutral conductor is required for installation.

Which lamps are compatible?+

Compatible dimmable LED lamps using TRIAC dimming are supported. Suitability must be confirmed before installation.

Does it connect to 5 GHz Wi-Fi?+

No. GS-D2CH connects exclusively to a 2.4 GHz Wi-Fi network.

Can existing wall controls be retained?+

Yes. Compatible momentary push-buttons can be connected to S1 and S2 for local ON/OFF and dimming.

Who should install GS-D2CH?+

Installation and electrical connection must be performed by a qualified electrician.

VIDEO

Product videos.

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TESTIMONIALS

Everyday experiences with GS-D2CH.

Smart lighting control in renovations, shops and homes.

01“

I use these modules in renovations where we want smart lighting without replacing the switches. The D2CH also gives me dimming control, which more and more customers are asking for.

GiorgosElectrician

02“