# UV bulb Osram DU-L-55-78 (ultraviolet lamp, EAN 4008321894618)

**URL:** https://aio.lv/en/product--osram-du-l-55-78--11698469
**Data updated:** 2026-02-25 16:42 (EET)
**Category:** Projector Bulbs & Lamps
**Manufacturer:** osram
**Manufacturer code:** DU-L-55-78
**EAN:** 4008321894618
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 25.61 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--osram-du-l-55-78--11698469

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Osram DU-L-55-78 ultraviolet (UV) bulb, model DU-L-55-78 with EAN 4008321894618. This replacement UV lamp provides ultraviolet output for compatible fixtures and devices that accept the DU-L series lamp format. Suitable for use in applications requiring UV illumination or curing where the model and form factor match required specifications.

## Long description

Osram DU-L-55-78 ultraviolet (UV) bulb is a direct-replacement lamp designed for fixtures and devices that accept the DU-L series format. The lamp delivers ultraviolet radiation suitable for illumination, inspection and curing applications where the DU-L-55-78 form factor and operating parameters are required. This bulb is intended for use in systems designed for open or enclosed UV lamp installation and should be matched to compatible ballasts and lamp holders.
Advantages
The Osram DU-L-55-78 provides consistent ultraviolet output with a design compatible with DU-L series fixtures. Its construction ensures stable operation when used with appropriate electrical supply and holders. The bulb is manufactured to industry tolerances for UV lamps, offering predictable performance for tasks such as UV inspection, adhesive curing and fluorescence excitation. As a replacement lamp, it simplifies maintenance and reduces downtime when installed according to device specifications.
Suitable for
 UV inspection and nondestructive testing tasks
 UV curing of adhesives and coatings (in compatible systems)
 Fluorescence illumination for laboratory or industrial use
 Replacement in devices designed for DU-L series ultraviolet lamps
Key specifications
 Lamp type: ultraviolet (UV) discharge lamp
 Form factor: DU-L series tubular design
 Intended use: UV illumination, inspection and curing applications
 Compatibility: designed for fixtures accepting DU-L series lamps and matching electrical ballast/holder
 Construction: tubular UV lamp with electrodes and gas fill suitable for UV output
How to use
Install the Osram DU-L-55-78 only in fixtures and devices specified for DU-L series lamps, ensuring that the electrical ballast and lamp holders match the lamp's requirements. Before installation, disconnect power to the fixture and allow any existing lamp to cool. Handle the lamp carefully to avoid damage to the glass envelope and electrodes; use gloves or a clean cloth to prevent contamination. After seating the lamp securely, restore power and verify stable operation. Follow the device manufacturer's start-up and warm-up recommendations for consistent UV output.
Usage recommendations
Use personal protective equipment appropriate for UV exposure, such as UV-blocking eyewear and skin protection, and follow local safety guidelines. Do not operate the lamp in open view without proper shielding. Dispose of the lamp according to local regulations for UV lamps and components.

## FAQ

### How much does the UV bulb Osram DU-L-55-78 cost, and is it available for purchase?

The price is 30.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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 09.07.2026 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 osram 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 osram 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

### Where can I download the instructions for UV bulb Osram DU-L-55-78?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11698469/67079440_large.webp