# LED bulb Synergy21 Retrofit 4 W, 440 lm, cool white 7000 K

**URL:** https://aio.lv/en/product--synergy21-s21-led-tom00080--12099469
**Data updated:** 2026-03-20 09:52 (EET)
**Category:** LED Bulbs
**Manufacturer:** Synergy21
**Manufacturer code:** S21-LED-TOM00080
**EAN:** 4038816999658
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-08-09 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--synergy21-s21-led-tom00080--12099469

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Synergy21 Retrofit LED bulb with 4 W power and 440 lm luminous flux produces cool white light at 7000 K. Designed as a retrofit replacement for conventional bulbs, it delivers energy-efficient general illumination for homes, offices and task areas. Suitable for fixtures requiring a compact LED bulb with high colour temperature and low power consumption.

## Long description

Synergy21 Retrofit 4 W LED bulb provides efficient cool white illumination with a rated luminous flux of 440 lm and a colour temperature of 7000 K. Designed as a retrofit replacement for conventional incandescent or compact fluorescent bulbs, this compact LED lamp fits many standard fixtures and offers consistent, high-colour-temperature light for general and task lighting in residential and light-commercial environments.
Advantages
The LED bulb consumes only 4 W while producing 440 lumens, delivering a high lumen-per-watt ratio for lower energy use and reduced operating costs. Its cool white 7000 K light supports visual clarity and contrast in work areas, utility rooms and display settings. The retrofit form factor makes it simple to install in existing sockets without fixture modification, and the long service life typical of LED technology reduces the frequency of replacements.
Suitable for
Task lighting in workshops, garages and study areas
Utility and storage rooms where cool white light improves visibility
Accent or display lighting requiring a compact, high-colour-temperature source
Retrofit projects replacing higher‑consumption bulbs in domestic and small office fixtures
Key specifications
Rated power: 4 W
Luminous flux: 440 lm
Colour temperature: 7000 K (cool white)
Retrofit design suitable for standard lamp holders
Compact bulb size for use in small fixtures
How to use
Switch off power before installing the bulb. Remove the existing lamp from the fixture and screw in the Synergy21 Retrofit LED bulb until secure. Restore power and verify illumination. Use the bulb in fixtures that accept its physical form factor and electrical parameters; avoid installation in fully enclosed luminaires unless the fixture specification permits LED retrofit lamps.
Usage recommendations
For best performance, use the bulb in dry indoor locations and avoid frequent on/off cycling when possible. Ensure compatible dimming equipment is specified if dimming functionality is required, as not all retrofit LED bulbs support dimming.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Bulb power | 4 W |
| Luminous flux | 440 lm |
| Light colour | Cool white |
| Colour temperature | 7000 K |
| Product colour | Aluminium |
| Bulb size | GU10 |

### Technical details

| Feature | Value |
|---|---|
| Product design | Spot |
| Housing material | Aluminium |
| Voltage | 85 - 265 |
| Compliance certificates | RoHS |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.066 kg |
| Length | 60 mm |
| Diameter | 50 mm |

### Other features

| Feature | Value |
|---|---|
| Energy consumption (1000 hours) | 4 kWh |
| Energy efficiency class (old) | A++ |

## FAQ

### How much does the LED bulb Synergy21 Retrofit 4 W 7000 K cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 80 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 27.07.2026 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 Synergy21 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 Synergy21 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: bulb power, luminous flux, colour temperature, 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 LED bulb Synergy21 Retrofit 4 W 7000 K?

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/12099469/67638918_large.webp