# Built-in Dimmer & Switch Homematic IP EQ3-ADA-J2 — White, 55×55×20 mm

**URL:** https://aio.lv/en/product--homematic-ip-103478a2--12034252
**Data updated:** 2026-03-20 09:50 (EET)
**Category:** Home Automation
**Manufacturer:** Homematic IP
**Manufacturer code:** 103478A2
**EAN:** 4047976135783
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 4.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--homematic-ip-103478a2--12034252

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Homematic IP EQ3-ADA-J2 is a built-in dimmer and switch in white finish designed for recessed installation. Core specifications: compact housing sized 55×55×20 mm, combined dimming and switching function, suitable for lighting control in residential or commercial electrical installations. Practical use cases include adjustable indoor lighting, retrofit smart home setups and centralized light control panels.

## Long description

Homematic IP EQ3-ADA-J2 is a built-in dimmer and switch in white finish designed for recessed installation and integration into modern electrical systems. The compact housing (55×55×20 mm) combines dimming and switching functions in a single module intended for lighting control in residential and commercial environments. The device supports retrofit smart home setups and centralized light control panels where space is limited and precise, flexible light regulation is required.
Advantages
The unit provides combined dimming and switching in a compact form factor suitable for flush mounting behind standard switch frames. Its white finish and small dimensions allow discreet integration into existing installations. Compatibility with the Adapter set Jung J2 enables simple integration with multiple switch series without extensive rewiring, allowing wireless Homematic and Homematic IP actuators to replace existing switches with minimal installation effort. The integrated functions allow both on/off control and stepless light adjustment where supported by connected loads.
Suitable for
 Adjustable indoor lighting in homes and apartments
 Retrofit smart home conversions using Homematic and Homematic IP actuators
 Centralized light control panels and switch clusters with limited space
 Integration behind existing switch series using the Jung J2 adapter set
 Commercial interior lighting where discreet, recessed control is required
Key specifications
 Form factor: built-in module for recessed installation
 Dimensions: 55 × 55 × 20 mm
 Color / finish: white
 Functions: combined dimmer and switch (on/off and dimming control)
 Compatibility: designed for use with Homematic and Homematic IP wireless actuators when used with compatible adapters
 Mounting type: behind switch frames / within installation boxes
How to use
Install the built-in dimmer and switch in a suitable installation box behind the desired switch location, following local electrical regulations and switching off power before installation. Connect supply, load and control wiring according to the wiring diagram provided by the manufacturer and ensure the device is mounted securely in the recess. If integrating with existing switch covers or frames produced by other manufacturers, use the Jung J2 adapter set to attach wireless actuators with minimal wiring changes. After wiring, restore power and pair or configure the module with the Homematic or Homematic IP system as required for your setup.
Usage recommendations
Use the adapter set Jung J2 to integrate the module with supported switch series (A 500, A creation, A plus, AS 500, AS universal) for a low-effort retrofit. Verify compatibility of connected lamps and loads with dimming operation, and follow the manufacturer’s documentation for pairing, load limits and mounting depth to ensure safe and reliable operation.

## Specifications

| Feature | Value |
|---|---|
| Type | Dimmer & switch |
| Package weight | 14.4 g |
| Height | 55 mm |
| Width | 55 mm |
| Depth | 20 mm |
| Product colour | White |
| Case design | Built-in |
| Package depth | 180 mm |
| Package width | 120 mm |

## FAQ

### How much does the Homematic IP EQ3-ADA-J2 Built-in Dimmer & Switch cost, and is it available for purchase?

The price is 5.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Homematic IP products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Homematic IP service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for Homematic IP EQ3-ADA-J2 Built-in Dimmer & Switch?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12034252/67608275_large.webp