# KOS Hydro Line Staircase Switch, IP44 Hermetic, White

**URL:** https://aio.lv/en/product--kos-120406--12461931
**Data updated:** 2026-05-18 09:32 (EEST)
**Category:** Smart Switches
**Manufacturer:** KOS
**Manufacturer code:** 120406
**EAN:** 5903292352749
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kos-120406--12461931

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

The KOS Hydro Line staircase switch is a high-quality hermetic electrical component with an IP44 protection rating, designed for safe operation in humid environments. This white switch is ideal for controlling lighting from two different locations, ensuring durability and reliability in residential or commercial installations. Its robust construction protects against moisture and dust, making it suitable for bathrooms, basements, or outdoor areas.

## Long description

The KOS Hydro Line staircase switch is a professional-grade electrical component engineered for reliable lighting control in demanding environments. Featuring an IP44 hermetic rating, this switch provides essential protection against splashing water and dust ingress, ensuring safe operation in areas prone to moisture. Its clean white finish and durable construction make it a versatile choice for both residential and commercial electrical installations where safety and longevity are paramount.
Advantages
The primary benefit of this staircase switch is its robust hermetic design, which allows for installation in locations where standard switches would be vulnerable to environmental damage. By enabling the control of a single light source from two distinct locations, it offers significant convenience for stairwells, hallways, and large rooms. The high-quality materials used in its production ensure consistent performance over time, while the IP44 rating provides peace of mind in humid conditions.
Suitable for
Staircases and multi-level hallways
Bathrooms and laundry rooms
Basements and garages
Covered outdoor areas or patios
When it may not be suitable
This switch is not intended for direct exposure to heavy rain or water jets, as it is rated for splash protection only. It should not be installed in industrial environments with high concentrations of corrosive chemicals or extreme temperatures that exceed the manufacturer's specified operating range.
Key specifications
Protection rating: IP44
Color: White
Function: Staircase switch (two-way control)
Mounting type: Surface or flush mount depending on installation box
Material: High-grade moisture-resistant plastic
How to use
Installation should be performed by a qualified electrician to ensure compliance with local safety regulations. The switch is designed to be integrated into a two-way lighting circuit, allowing you to toggle the same light from two different points. Ensure the power supply is disconnected before beginning the installation process. Secure the switch in a compatible wall box and connect the wiring according to the provided electrical diagram for staircase switching configurations.
What to consider before purchase
Verify that your existing wiring supports two-way switching functionality
Check the installation environment to ensure IP44 protection is sufficient for your needs
Ensure compatibility with your current wall box or mounting surface
Usage recommendations
For optimal safety and performance, always ensure that the cable entries are properly sealed during installation to maintain the integrity of the IP44 hermetic seal. Avoid using abrasive cleaning agents on the surface to prevent damage to the protective finish.

## FAQ

### How much does the KOS Hydro Line Staircase Switch IP44 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 — 34 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 29.06.2026 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 KOS 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 KOS 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/12461931/68763808_large.webp