# Fiber Optic Adapter Lightwin LWL Kupplung Simplex ST-ST Singlemode Red

**URL:** https://aio.lv/en/product--lightwin-lkup-st-st-sm--3782126
**Data updated:** 2026-01-15 13:46 (EET)
**Category:** Network Equipment Accessories
**Manufacturer:** Lightwin
**Manufacturer code:** LKUP ST-ST SM
**EAN:** 9120042367334
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lightwin-lkup-st-st-sm--3782126

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.99 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

The Lightwin LWL Kupplung Simplex ST-ST Singlemode fiber optic adapter features a durable metal construction and is designed for single-mode fiber applications. With a striking red color, this adapter ensures easy identification and reliable connectivity. It supports ST connector types and is packaged as a single unit, making it ideal for various networking setups.

## Long description

The Lightwin LWL Kupplung Simplex ST-ST Singlemode is a fiber optic adapter designed for single‑mode ST connector links. Constructed from metal for durability and finished in red for quick visual identification, the adapter provides a compact, single‑unit solution for connecting two ST‑terminated single‑mode fibers in networking and telecommunication installations.
Advantages
The metal housing ensures mechanical robustness and stable alignment of the ST ferrules, while the simplex ST‑to‑ST design keeps the connection straightforward. The red color aids in cable management and rapid identification of single‑mode links. The adapter is supplied as a single piece, simplifying installation and inventory handling.
Suitable for
Joining two single‑mode fibers with ST connectors
Telecommunications and network patch panels
Field repairs and on‑site fiber splicing cabinets
Laboratory and testbench fiber connections
Key specifications
Connector type: ST to ST (simplex)
Fiber type: single‑mode
Material: metal housing
Color: red
Packaging: single unit
How to use
Align the ST connectors of the two single‑mode fibers with the adapter's ports and insert them until the bayonet locks engage. Ensure ferrules are clean before connection to maintain signal quality. To disconnect, depress the bayonet sleeve and withdraw the connector straight out. Handle the adapter and connectors carefully to avoid contamination or damage to fiber endfaces.
Usage recommendations
Clean connector endfaces with an appropriate fiber cleaning tool before making connections, and protect unused ports with dust caps. Use the red color as part of a labeling scheme to distinguish single‑mode links from multimode runs.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Red |
| Connector type | ST |
| Fiber mode structure | Single-mode |
| Number of connectors | 1 |
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Fiber Optic Adapter Lightwin LWL Kupplung Simplex ST-ST cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 209 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 20.07.2026 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. 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 Lightwin 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 Lightwin 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/3782126/58562027_large.webp