# KOS Trol Line Staircase Switch, Hermetic IP44, White

**URL:** https://aio.lv/en/product--kos-100406--12444542
**Data updated:** 2026-05-18 02:49 (EEST)
**Category:** Smart Switches
**Manufacturer:** KOS
**Manufacturer code:** 100406
**EAN:** 5903292353104
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kos-100406--12444542

## 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 Trol Line staircase switch is a reliable electrical component designed for controlling lighting from two different locations. Featuring an IP44 hermetic rating, this white switch is protected against moisture and dust, making it suitable for damp environments like garages, basements, or outdoor areas. It ensures safe and durable operation in residential and commercial electrical installations.

## Long description

The KOS Trol Line staircase switch is a robust electrical control device engineered for managing lighting systems from two distinct points. This functional switch is designed to integrate seamlessly into residential and commercial electrical circuits, providing reliable performance for staircases, hallways, and long corridors. With its clean white finish and durable construction, it offers a practical solution for modern interior and exterior electrical setups.
Advantages
This staircase switch stands out due to its IP44 hermetic rating, which provides essential protection against splashing water and solid particles. This makes it a versatile choice for environments where standard switches might fail, such as damp basements, garages, or sheltered outdoor areas. The design focuses on long-term durability and ease of operation, ensuring that the mechanism remains responsive and safe throughout its service life.
Suitable for
Controlling lighting in staircases from two different levels
Managing corridor lighting from both ends
Installation in damp residential areas like garages or utility rooms
Outdoor use in sheltered, covered locations
When it may not be suitable
This switch is not intended for use in areas directly exposed to heavy rain or water jets, as the IP44 rating only covers protection against splashing. It is also not compatible with smart home automation systems unless integrated with additional external controllers.
Key specifications
Type: Staircase switch (two-way)
Ingress protection rating: IP44
Color: White
Application: Indoor and sheltered outdoor use
How to use
Installation should be performed by a qualified electrician to ensure safety and compliance with local electrical codes. The switch is designed for surface or flush mounting depending on the specific wall configuration. Once installed, the switch allows you to toggle the connected light source from either of the two installed switch locations, providing convenient control for multi-entry spaces.
What to consider before purchase
Verify that your existing wiring supports a two-way staircase switching configuration
Ensure the installation location meets the IP44 protection requirements
Check the compatibility of the switch design with your current interior decor
Usage recommendations
For optimal safety and longevity, ensure all electrical connections are tightened correctly during installation and avoid using the switch in environments exceeding its IP44 moisture protection limits.

## FAQ

### How much does the KOS Trol Line Staircase Switch IP44 cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 23 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/12444542/68747782_large.webp