# KOS Trol Line Staircase Switch, Hermetic IP44, White

**URL:** https://aio.lv/en/product--kos-140406--12467511
**Data updated:** 2026-05-18 09:30 (EEST)
**Category:** Smart Switches
**Manufacturer:** KOS
**Manufacturer code:** 140406
**EAN:** 5903292350776
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-06 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kos-140406--12467511

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The KOS Trol Line staircase switch is a high-quality electrical control device designed for reliable operation in demanding environments. Featuring an IP44 hermetic rating, this white switch provides protection against moisture and dust, making it suitable for damp areas or outdoor use. It is engineered for easy installation and long-term durability, ensuring seamless control of lighting systems in residential or commercial settings.

## Long description

The KOS Trol Line staircase switch is a robust electrical control solution designed for reliable lighting management in both residential and commercial environments. This hermetic switch features an IP44 rating, ensuring effective protection against moisture, water splashes, and dust ingress. Its clean white finish and durable construction make it a versatile choice for areas where environmental conditions require enhanced equipment resilience.
Advantages
The primary benefit of this staircase switch is its high level of durability and resistance to external factors. The IP44 hermetic design allows for safe installation in damp locations, such as garages, basements, or covered outdoor areas, without compromising performance. The switch is engineered for longevity and consistent operation, providing a seamless user experience while maintaining a professional aesthetic that integrates well with various interior styles.
Suitable for
Staircase lighting control
Damp residential areas like basements or garages
Covered outdoor spaces
Commercial corridors requiring moisture-resistant switches
When it may not be suitable
This switch is not intended for direct exposure to heavy rain or total submersion in water, as the IP44 rating only provides protection against splashing water. It is also not suitable for industrial environments with high levels of chemical vapors or extreme temperatures that exceed standard electrical component ratings.
Key specifications
Type: Staircase switch
Protection rating: IP44
Color: White
Series: Trol Line
Application: Indoor and sheltered outdoor use
How to use
The switch is designed for standard wall mounting. Installation should be performed by a qualified electrician to ensure all wiring connections are secure and compliant with local safety regulations. Once installed, the switch operates as a standard staircase control, allowing you to toggle lighting from two different locations when paired with a second compatible switch.
What to consider before purchase
Verify that the IP44 rating meets the specific environmental requirements of your installation site.
Ensure compatibility with your existing electrical wiring system.
Confirm the switch type matches your circuit configuration for staircase lighting.
Usage recommendations
For optimal safety and performance, always ensure the power supply is disconnected before beginning installation. Regularly inspect the switch housing for any signs of damage to maintain its hermetic integrity.

## 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 — 10 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 01.07.2026 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 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/12467511/68769912_large.webp