# Osram STAR LED Bulb GU4 4W 345lm 2700K Warm White

**URL:** https://aio.lv/en/product--osram-4058075433380--12504411
**Data updated:** 2026-06-12 15:49 (EEST)
**Category:** LED Bulbs
**Manufacturer:** osram
**Manufacturer code:** 4058075433380
**EAN:** 4058075433380
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 7.84 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--osram-4058075433380--12504411

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Monday | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

The Osram STAR LED bulb is a high-efficiency 4W GU4 base lamp, serving as a 35W equivalent replacement. It provides a luminous flux of 345 lm with a warm white color temperature of 2700 K and a 36° beam angle. Designed for a 15,000-hour lifespan, this bulb features a CRI of 80 and a power factor of 0.5, making it an ideal choice for accent lighting and spot applications requiring reliable, energy-saving performance.

## Long description

The Osram STAR LED bulb with a GU4 base is a highly efficient lighting solution designed to replace traditional 35W halogen lamps while consuming only 4W of power. This compact LED provides a luminous flux of 345 lumens, delivering a warm white light at a color temperature of 2700K. With a focused 36-degree beam angle, it is engineered to provide precise illumination for various indoor settings, ensuring both energy savings and consistent light quality over a long operational lifespan.
Advantages
This LED bulb offers significant energy efficiency, reducing electricity consumption compared to conventional halogen alternatives. Its robust design ensures a long service life of up to 15,000 hours, which minimizes the frequency of replacements and maintenance efforts. The GU4 base allows for straightforward installation in compatible fixtures, while the warm white light output creates a comfortable and inviting atmosphere in any space. Furthermore, the focused beam angle makes it an excellent choice for highlighting specific objects or architectural features without excessive light spill.
Suitable for
Accent lighting in display cabinets and shop windows
Illumination in museums and art galleries
General lighting in exhibition rooms
Residential interior lighting
Downlighting for walkways, doors, and stairs
Outdoor use when installed in suitable, weather-protected luminaires
When it may not be suitable
This bulb is not suitable for use in dimmable circuits, as it is designed for standard on-off operation. Additionally, it may not be appropriate for general ambient room lighting due to its narrow 36-degree beam angle, which is specifically intended for directional spot lighting rather than wide-area illumination.
Key specifications
Power consumption: 4W
Equivalent power: 35W
Base type: GU4
Luminous flux: 345 lm
Color temperature: 2700K (Warm White)
Beam angle: 36°
Lifespan: 15,000 hours
Color Rendering Index (CRI): 80
Power factor: 0.5
How to use
To install the bulb, ensure the power supply to the fixture is switched off. Carefully align the two pins of the GU4 base with the socket and push the bulb in gently, then twist slightly if the socket design requires it to lock into place. Once securely seated, restore power to the fixture. Avoid touching the bulb surface with bare hands if possible, and ensure the fixture is compatible with the 12V requirements of this GU4 lamp type.
What to consider before purchase
Verify that your existing fixture is compatible with a GU4 base.
Ensure the fixture is not connected to a dimmer switch.
Check that the 36-degree beam angle meets your specific lighting requirements.
Confirm that the fixture provides the correct voltage for this lamp.
Usage recommendations
For optimal performance and longevity, ensure the bulb is used in a well-ventilated fixture to prevent heat buildup. When using this product in outdoor environments, always house it within a luminaire that provides adequate protection against moisture and environmental elements.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Fitting/cap type | GU4 |
| Bulb power | 4 W |
| Luminous flux | 345 lm |
| Light colour | Warm white |
| Colour temperature | 2700 K |
| Beam angle (max) | 36 ° |
| Power factor | 0.5 |
| Luminous intensity | 600 cd |
| Color Rendering Index (CRI) | 80 |
| Lumen maintenance factor | 70 % |
| Warm-up time to 60% light | 0.5 |
| Bulb lifetime | 15000 h |
| Equivalent bulb power | 35 W |
| Luminous efficacy | 82 lm/W |
| Bulb size | MR11 |

### Power

| Feature | Value |
|---|---|
| Input voltage | 12 |
| Energy efficiency class | F |
| Bulb current | 500 mA |
| Energy efficiency scale | A to G |
| Energy consumption per 1000 hours | 5 kWh |

### Technical details

| Feature | Value |
|---|---|
| International Protection (IP) code | IP20 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.022 kg |
| Length | 38 mm |
| Diameter | 35 mm |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 30 g |
| Package depth | 34 mm |
| Package height | 95 mm |
| Package width | 49 mm |
| Package type | Box |
| Quantity per pack | 1 pc(s) |

### Other features

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -20 - 40 |
| Heavy metals free | Hg (mercury) |

## FAQ

### How much does the Osram STAR LED Bulb GU4 4W 2700K cost, and is it available for purchase?

The price is 9.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 544 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 Monday 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: fitting/cap type, bulb power, luminous flux, colour temperature, energy efficiency class, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Osram STAR LED Bulb GU4 4W 2700K?

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/12504411/68866971_large.webp