1. Introduzione
The SONOFF D1 Smart Dimmer Switch is a Wi-Fi enabled device designed to control the brightness of dimmable LED and incandescent light bulbs. It offers versatile control options including the eWeLink app, 433MHz RF remote control (sold separately), and voice control via Alexa and Google Home. This manual provides essential information for safe installation, operation, and maintenance of your D1 dimmer switch.
2. Informazioni sulla sicurezza
- AVVERTIMENTO: Risk of electric shock. Installation should be performed by a qualified electrician.
- Ensure power is turned OFF at the circuit breaker before installation or maintenance.
- Non installare con le mani bagnate o stando in piedi su superfici bagnate.
- Questo dispositivo è destinato esclusivamente all'uso in ambienti interni.
- Do not exceed the maximum load ratings: 150W for dimmable LEDs or 200W for incandescent bulbs.
- Per l'installazione è necessario un filo neutro.
3. Caratteristiche del prodotto
- Oscuramento intelligente: Adjust brightness from 1% to 100% via app, RF remote, or voice commands.
- Opzioni di controllo multiple: eWeLink App (iOS/Android), 433MHz RF remote control (RM433, sold separately), and voice control (Amazon Alexa, Google Home).
- Memoria di luminosità: The device remembers and reactivates the last lighting setting when powered on.
- Soft On/Off: Provides a comfortable visual effect with gradual light transitions.
- Protezione contro il surriscaldamento: Built-in safety mechanism to prevent damage from excessive heat.
- Programmazione temporale: Set schedules for automatic light control through the eWeLink app.
- Scene intelligenti: Create custom automation rules with other smart devices in the eWeLink ecosystem.
- Controllo delle azioni: Share device control with family members via the eWeLink app.

Immagine: Oltreview of SONOFF D1 Smart Dimmer Switch features, including app and remote control capabilities. Note: RM433 RF remote control is not included and must be purchased separately.
4. Configurazione e installazione
4.1. Prima dell'installazione
- Ensure your electrical system includes a neutral wire.
- Confirm that your light bulbs are dimmable LED (up to 150W) or incandescent (up to 200W).
- Scarica l'app eWeLink dall'App Store (iOS) o dal Google Play Store (Android).
4.2. Schema elettrico
Follow the wiring diagram carefully. Incorrect wiring can cause damage to the device or electrical hazards. Always turn off power at the circuit breaker before wiring.

Image: Wiring diagram for the SONOFF D1 dimmer switch, illustrating connections for neutral (N in), live input (L in), and live output (L out) to the light fixture. Product dimensions are also shown.
- Connect the Live input wire to the "L in" terminal.
- Connect the Neutral input wire to the "N in" terminal.
- Connect the Live output wire to the "L out" terminal (to the light bulb).
- Connect the Neutral output wire to the "N" terminal (to the light bulb).
4.3. Montaggio
The D1 dimmer switch is designed to fit into standard mounting boxes. Ensure the chosen mounting box is compatible with the device dimensions.

Image: The SONOFF D1 dimmer switch is compatible with 86 type, EU type, and US type mounting boxes, as indicated by the diagrams.
- The dimmer switch can be installed in 86 type, EU type, and US type mounting boxes.
- Secure the device within the mounting box after wiring is complete.
4.4. Pairing with eWeLink App
- After wiring and mounting, restore power to the circuit.
- Open the eWeLink app and register/log in.
- Put the device into pairing mode (refer to the app's instructions for specific steps, usually involves pressing a button on the device for a few seconds).
- Follow the in-app instructions to add the D1 dimmer switch to your Wi-Fi network.
5. Istruzioni per l'uso
5.1. Controllo app
Once paired with the eWeLink app, you can control the D1 dimmer switch from your smartphone or tablet.
- Open the eWeLink app and select your D1 device.
- Use the on-screen slider or touch area to adjust the brightness from 1% to 100%.
- Toggle the light on/off directly from the app.
- Set timing schedules and create smart scenes within the app.

Image: A user adjusting light brightness via the eWeLink app on a smartphone, demonstrating convenient dimming for various ambiances, such as preparing for sleep.
5.2. RF Remote Control (RM433, Sold Separately)
If you have purchased the SONOFF RM433 RF remote control, you can pair it with your D1 dimmer switch for local control.
- Refer to the RM433 remote control's manual for pairing instructions with the D1 switch.
- The RM433 remote allows for 4-level brightness adjustment.
- Use the remote to turn lights on/off and adjust brightness without needing the app.

Image: A couple enjoying a movie night, with a remote control nearby, illustrating the convenience of adjusting lighting with the optional RM433 remote for an immersive experience.
5.3. Controllo vocale
The D1 dimmer switch is compatible with Amazon Alexa and Google Home for hands-free control.
- Collega il tuo account eWeLink alla tua app Alexa o Google Home.
- Scopri i dispositivi nell'app del tuo assistente vocale.
- Utilizzare comandi come:
- "Alexa, accendi [nome del dispositivo]."
- "Hey Google, dim [device name] to 50%."
- "Alexa, brighten [device name]."
5.4. Applicable Light Types
The SONOFF D1 supports:
- Dimmable LED light bulbs (up to 150W)
- Incandescent light bulbs (up to 200W)

Immagine: Examples of compatible lighting, including incandescent bulbs and dimmable LED lights, demonstrating the versatility of the D1 dimmer switch.
6. Manutenzione
- Clean the device with a soft, dry cloth. Do not use abrasive cleaners or liquids.
- Controllare regolarmente i collegamenti dei cavi per verificarne la tenuta e l'eventuale presenza di segni di usura.
- Assicurarsi che il dispositivo non sia esposto a umidità eccessiva o a temperature estreme.
7. Risoluzione Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Il dispositivo non si accende. | Nessuna alimentazione; cablaggio errato. | Check circuit breaker. Verify wiring according to the diagram (Section 4.2). |
| Impossibile connettersi al Wi-Fi. | Incorrect Wi-Fi password; device too far from router; 5GHz Wi-Fi network. | Ensure correct 2.4GHz Wi-Fi password. Move device closer to router. SONOFF D1 only supports 2.4GHz Wi-Fi. |
| Le luci tremolano o non si attenuano correttamente. | Non-dimmable bulbs; incompatible bulb type; exceeding wattage limite. | Ensure bulbs are explicitly labeled as dimmable. Verify bulb wattage is within device limits (150W LED, 200W Incandescent). |
| Lights turn on/off randomly (phantom switching). | Electrical interference; unstable power supply; firmware issue. | Ensure stable power supply. Check for strong electromagnetic interference sources nearby. Update device firmware via eWeLink app. If issues persist, contact customer support. |
| Il telecomando RF non funziona. | Remote not paired; battery low in remote. | Ensure the RM433 remote is correctly paired with the D1 switch. Replace remote battery if necessary. |
8. Specifiche
| Modello | D1 |
| Marca | SONOFF |
| Dimensioni (L x P x A) | Dimensioni: 6.2 x 4.7 x 3.2 cm |
| Peso | 50 grammi |
| Power Rating (Incandescent) | Massimo 200W |
| Power Rating (Dimmable LED) | Massimo 150W |
| Ingresso volumetage | 100-240 V CA 50/60 Hz |
| Wi-Fi standard | IEEE 802.11 b / g / n 2.4GHz |
| Frequenza RF | 433.92 MHz |
| Modalità operativa | ON-OFF, Dimmer |
| Certificazione | Grado di protezione IP00 |
| Materiale | Copper (contact material) |
9. Garanzia e supporto
SONOFF products come with a standard warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official SONOFF website. For technical support, troubleshooting assistance, or further inquiries, please contact SONOFF customer service through their official channels.
Ufficiale Websito: www.sonoff.com