Dual Channel Zigbee Dimmer

Dual Channel Zigbee Dimmer Module — No Neutral, Home Assistant & HomeKit (SM309-S-2CH)

(3 customer reviews)

£42.99 – £46.24

Dual Channel Zigbee Dimmer Module – trailing-edge LED, 100–240VAC, neutral wire required. Works with Home Assistant & other popular Smart Home platforms.

SKU: SM309-S-2CH Categories: , Tags: , , , ,

Description

The new 2-Channel ZigBee AC Phase-Cut Dimmer from Samotech, built on the advanced ZigBee 3.0 protocol, offers versatile and reliable lighting control. With a wide voltage range of 100-240VAC, it supports both resistive and capacitive loads, making it compatible with various lighting setups. Each of the two output channels functions independently, allowing you to control lights separately using dedicated ZigBee endpoints.

Equipped with secure screw terminals, this dimmer ensures safe connections for both input and output. It provides the flexibility of leading and trailing edge dimming, with the default factory setting configured to trailing edge. Seamlessly managing ON/OFF switching and light intensity adjustments for dimmable LED bulbs or LED drivers, this new addition is ideal for modern smart homes.

Fully compatible with universal ZigBee gateways that support multiple endpoints, the dimmer can also be operated using a single-wire push switch, allowing separate control of each channel with individual switches. Its compact design fits easily into a standard 86×86 mm wall box, making installation simple and space-efficient.

Operating at a 2.4GHz radio frequency and rated IP20 for basic indoor protection, this innovative product from Samotech is a robust and adaptable solution for smart lighting applications.

Supported Zigbee clusters:

Input Zigbee clusters:
• 0x0000: Basic
• 0x0003: Identify
• 0x0004: Groups
• 0x0005: Scenes
• 0x0006: On/off
• 0x0008: Level Control
• 0x0b05: Diagnostics
• 0x1000: ZLL Commissioning 

@samotech_official #samotech #sm309 #smarthome #smarthome #diyproject #unboxingvideo #homeassistant #zha #techtips #automation #smartlights ♬ Confidence (sped up version) – Ocean Alley

Additional information

Weight 35 g
Dimensions 45 × 45 × 20 mm
Type

Typical, Pre-configured
Brand

Samotech

Frequently Asked Questions

What does the SM309-S-2CH Dual Channel Zigbee Dimmer do?

The SM309-S-2CH is a 2-channel Zigbee 3.0 AC phase-cut dimmer that controls two independent dimmable lighting circuits from a single in-wall module. Each output channel functions independently with its own Zigbee endpoint.

Does the SM309-S-2CH require a neutral wire?

Yes. The SM309-S-2CH dual-channel dimmer requires a Live + Neutral wire — neutral is required for this product. If your wiring does not have a neutral at the switch position, consider either installing the module at the ceiling rose instead or using the single-channel SM309-S instead, which works without a neutral.

What load can each channel of the SM309-S-2CH handle?

Each channel handles up to 100W LED, 200W incandescent, or 100W halogen load. Input voltage is 110 - 230VAC.

Does the SM309-S-2CH support trailing and leading edge dimming?

Yes. The SM309-S-2CH supports trailing edge dimming only which is what recommended for most modern dimmable LED bulbs.

Can I use the SM309-S-2CH in 2-way wiring?

Yes. The SM309-S-2CH supports 2-way switch configurations and can be pre-configured to use either retractive/momentary or standard on/off light switch.

Can each channel be controlled by its own switch?

Yes. The SM309-S-2CH can be operated using a single-wire push switch on each channel, allowing independent manual control of both circuits in addition to smart-app control.

Where does the SM309-S-2CH install?

The SM309-S-2CH can be installed behind a light switch into a 35mm deep wall back box or at the ceiling rose where both live and neutral wires can be accessed.

Which Zigbee gateways does the SM309-S-2CH work with?

The SM309-S-2CH is fully compatible with universal Zigbee 3.0 gateways that support multiple endpoints, including Home Assistant (ZHA, Zigbee2MQTT) and other major Zigbee platforms. The dimmer is rated IP20 for indoor use.

Manual

SAMOTECH Zigbee Dimmer SM309-S-2CH Manual

Technical Data

Specifications

Zigbee Dimmer Module

Wiring Diagram

Bulbs Compatibility Matrix

BULB / LOAD TYPE COMPATIBILITY RISK LEVEL TYPICAL SYMPTOMS RECOMMENDATION
SAMOTECH Dimmable GU10 SAMOTECH GU10 Compatible None None Recommended
Incandescent / Halogen Incandescent Halogen Compatible None None Recommended
Dimmable LED (Quality brands) Quality LED bulbs Compatible None None Recommended
Dimmable LED (Cheap / unknown) Cheap LED bulbs Conditional Very Low Minor flicker. May not turn off fully. Test first. Use a bypass if required.
Low load LEDs (<15W) Low load LED bulbs Conditional Very Low Minor flicker. May not turn off fully. Use a bypass
LED strips (220V dimmable driver) LED strip dimmable Conditional Medium Minor flicker Test first
Integrated LED fittings (separate LED driver, colour modes) Integrated LED fitting Conditional Medium Flashing or intermittent operation due to internal LED driver control Test first
Non-dimmable LED Non dimmable LED Not compatible High Flicker, overheating Do not use with dimmers
Smart bulbs Smart bulb Not compatible High Disconnects, rebooting Do not use with dimmers
LED strips (220V non-dimmable driver) Non dimmable LED strip Not compatible High Flicker, overheating Do not use with dimmers
Fluorescent / CFL CFL bulb Not compatible High Failure to start Do not use with dimmers

3 reviews for Dual Channel Zigbee Dimmer Module — No Neutral, Home Assistant & HomeKit (SM309-S-2CH)

5.0
Based on 3 reviews
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1-3 of 3 reviews
  1. Simon Fischer
    Verified owner

    exactly what I needed

    (0) (0)
  2. jonathan
    Verified owner
    (0) (0)
  3. Shaik esmail
    Verified owner
    (0) (0)
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