# Push button doorbell switch Karlik WP-4 white — single-gang, surface mount

**URL:** https://aio.lv/en/product--karlik-wp-4--11750811
**Data updated:** 2026-03-08 13:52 (EET)
**Category:** Smart Switches
**Manufacturer:** Karlik
**Manufacturer code:** WP-4
**EAN:** 5903292632407
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--karlik-wp-4--11750811

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Karlik WP-4 is a white push-button doorbell switch designed for doorbell circuits. The single-gang, surface-mount button provides a tactile mechanical contact for signalling a chime or bell. It suits residential or light-commercial use where a simple, visible doorbell actuator is required and is compatible with standard doorbell wiring.

## Long description

Karlik WP-4 white push button doorbell switch is a single-gang, surface-mount actuator intended for doorbell circuits. The unit features a tactile mechanical push button in a white finish that mounts on walls or flat surfaces. It provides a simple and visible interface for calling occupants, compatible with standard low-voltage doorbell wiring used in residential and light-commercial installations.
Advantages
The WP-4 offers a straightforward mechanical design with reliable tactile feedback and low electrical complexity, reducing points of failure. Its single-gang format and surface-mount installation make it quick to install without extensive wall modification. The white colour and neutral styling blend with common interior or exterior trim, while the robust push mechanism supports frequent use in everyday doorbell applications.
Suitable for
Home entrance doorbell control
Apartment corridor or stairwell call button
Small office or retail customer entry signalling
Replacement of existing surface-mounted mechanical doorbells
Key specifications
Form factor: single-gang, surface-mount push button
Operation: mechanical tactile push-button contact
Finish: white
Electrical: compatible with standard low-voltage doorbell circuits
Mounting: surface mounting directly to wall or mounting box
Intended environment: residential and light-commercial indoor or sheltered outdoor locations
How to use
Install the WP-4 on a suitable surface or mounting box, ensuring the electrical supply for the doorbell is switched off before making connections. Connect the doorbell wiring to the two terminals on the back of the switch following local wiring standards and the doorbell transformer rating. Secure the switch to the surface with appropriate screws and restore power to test the chime. Press the button to operate the mechanical contact and verify that the connected chime or bell responds correctly.
Usage recommendations
For reliable long-term performance, use the switch within the rated low-voltage doorbell circuit and avoid exposing it to direct weather when used outdoors. Regularly check terminal screws for tightness after installation and use compatible chimes or transformers as specified by local electrical codes.

## FAQ

### How much does the Karlik WP-4 push button doorbell switch cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 31 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 07.07.2026 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 Karlik 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 Karlik 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

## Image

https://aio.lv/img/cache/product/11750811/67129509_large.webp