# Alarm Lighting Fixed Blue LED PATLITE LR4-E-B

**URL:** https://aio.lv/en/product--patlite-lr4-e-b--3151926
**Data updated:** 2026-01-13 17:39 (EET)
**Category:** LED accessories
**Manufacturer:** Patlite
**Manufacturer code:** LR4-E-B
**EAN:** 4938766016026
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 40.49 €
**Prices and availability valid until:** 2026-07-06 23:59
**Price without VAT (21%):** 33.46 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--patlite-lr4-e-b--3151926

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The PATLITE LR4-E-B is a fixed blue LED alarm light designed for 24V DC operation. With a compact width of 40 mm, it is ideal for various applications. This product is RoHS certified, ensuring it meets environmental standards. Its bright blue LED provides clear visibility, making it suitable for alerting in industrial settings.

## Long description

The PATLITE LR4-E-B is a fixed blue LED alarm light designed for 24V DC operation, offering a compact form factor with a width of 40 mm. Its bright blue LED provides distinct visual signalling for industrial and commercial environments where clear, non-flashing indication is needed. RoHS certification confirms compliance with restrictions on hazardous substances, making the unit suitable for installations that require environmental standards adherence.
Advantages
The unit combines low power consumption with high luminous efficiency typical of LED technology, delivering reliable, long-lasting visual alerts without the heat and maintenance requirements of incandescent lamps. Its compact 40 mm width allows flexible mounting in confined panels or equipment housings. Designed for 24V DC systems, the LR4-E-B integrates smoothly into existing control circuits and signalling lines. RoHS compliance reduces environmental and disposal concerns for regulated installations.
Suitable for
Machine status indication on factory equipment and control panels
Visual alarms in production lines and process control systems
Notification lights in cabinets, enclosures, or compact assemblies
Signal marking in laboratories, testing benches, and service areas
Key specifications
Light colour: blue
Light source: LED
Rated voltage: 24V DC
Mounting width: 40 mm (compact profile)
Compliance: RoHS certified
Operation mode: fixed (non-flashing) indication
How to use
Install the LR4-E-B in a suitable panel cut-out or mounting location that supports its 40 mm width. Connect the positive and negative leads to a stable 24V DC supply following standard electrical safety practices and local wiring regulations. Verify polarity and secure wiring to prevent vibration-related loosening. After power-up, the blue LED provides continuous visual indication; no configuration is required for fixed-operation models.
Usage recommendations
For optimal visibility, mount the indicator at eye level relative to the operator work area and avoid obstructions that can block the light. Ensure the supply voltage is regulated and within the specified 24V DC range to maintain LED longevity. Use the LR4-E-B in environments consistent with its protection and installation specifications, and combine with audible alarms where multilayered alerting is required.

## Specifications

| Feature | Value |
|---|---|
| Type | Fixed |
| Certification | UL 508, CSA-C22.2 No.14
FCC 15 B A
RoHS (EN 50581)
EMC (EN 61000-6-4, EN 61000-6-2)
KC (KN 61000-6-4, KN 61000-6-2)
IEC/EN 60947-5-1, EN62471 |
| Storage temperature (T-T) | 0 - 90 |
| Form factor | Round |
| Operating temperature (T-T) | -20 - 50 |
| Lamp type | LED |
| Width | 40 mm |
| Operating voltage | 24 V |
| International Protection (IP) code | IP65 |
| Placement | Indoor |
| Power source type | DC |
| Diffuser colour | Blue |
| Quantity per pack | 1 pc(s) |
| Sustainability certificates | RoHS |

## FAQ

### How much does the Alarm Lighting PATLITE LR4-E-B cost, and is it available for purchase?

The price is 40.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 08.07.2026 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 Patlite 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 Patlite 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/3151926/58261666_large.webp