# LED bulb Synergy21 Retrofit 4W GX5.3, 400 lm, warm white 3000 K, 60° beam

**URL:** https://aio.lv/en/product--synergy21-s21-led-tom00927--12099209
**Data updated:** 2026-03-20 09:51 (EET)
**Category:** LED Bulbs
**Manufacturer:** Synergy21
**Manufacturer code:** S21-LED-TOM00927
**EAN:** 4038816030856
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-08-14 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--synergy21-s21-led-tom00927--12099209

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.07.2026 | free |
| Pickup points | 03.08.2026 | 1.89 EUR |
| Courier delivery to door | 03.08.2026 | 4.99 EUR |

## Summary description

Synergy21 Retrofit LED bulb with GX5.3 base delivers 400 lm from 4 W consumption and produces warm white light at 3000 K. Designed for retrofit and low-voltage fixtures using GX5.3 caps, it offers an estimated 35,000 h lifetime and a max 60° beam angle. Suitable for accent, display and task lighting in homes, shops and hospitality settings.

## Long description

Synergy21 Retrofit LED bulb with a GX5.3 base provides 400 lm of warm white light (3000 K) while consuming only 4 W. Intended as a direct replacement for low-voltage GX5.3 halogen spots, this lamp delivers focused illumination with a maximum 60° beam angle and an estimated lifetime of 35,000 hours. The compact retrofit design fits fixtures that accept GX5.3 caps and is suitable for accent, display and task lighting in residential and commercial environments.
Advantages
The LED bulb reduces energy use compared with equivalent halogen lamps while maintaining warm-coloured light suitable for living spaces and display applications. With an estimated 35,000 h lifetime and a stable lumen output of 400 lm, the bulb lowers maintenance needs and replacement frequency. The 60° maximum beam angle provides controlled light distribution for task and accent lighting, and the GX5.3 base ensures compatibility with existing low-voltage fixtures designed for this cap.
Suitable for
 Accent and display lighting in retail and exhibition settings
 Task lighting in kitchens, worktops and reading areas
 Hospitality lighting such as hotel rooms, corridors and lobbies
 Residential downlights and adjustable spot fixtures that accept GX5.3
Key specifications
 Rated power: 4 W
 Luminous flux: 400 lm
 Colour temperature: 3000 K (warm white)
 Beam angle: up to 60°
 Estimated lifetime: 35,000 hours
 Base type: GX5.3 (two-pin low-voltage)
How to use
Ensure the fixture is compatible with GX5.3 two-pin low-voltage lamps and switch off power before replacing an existing bulb. Press the bulb gently into the GX5.3 socket until it sits securely. After installation, restore power and check the beam direction and coverage; adjust the fixture orientation if required to achieve the intended accent or task illumination. For dimming use, verify compatibility with the fixture's dimmer and transformer if present.
Usage recommendations
Use this Synergy21 Retrofit 4W GX5.3 bulb in fixtures designed for low-voltage GX5.3 lamps and, when applicable, pair with compatible electronic transformers or dimmers. Avoid exposure to excessive moisture unless the fixture provides appropriate ingress protection. For display lighting, position the lamp to minimise glare and to highlight objects without overheating the illuminated surface.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Fitting/cap type | GX53 |
| Bulb power | 4 W |
| Luminous flux | 400 lm |
| Light colour | Warm white |
| Colour temperature | 3000 K |
| Beam angle (max) | 60 ° |
| Bulb lifetime | 35000 h |
| Product colour | Aluminium |

### Power

| Feature | Value |
|---|---|
| Input voltage | 10 - 14 |

### Technical details

| Feature | Value |
|---|---|
| Housing material | Aluminium |
| Mean cycles between failures (MCBF) | 50000 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Length | 52 mm |
| Diameter | 50 mm |

### Other features

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 50 |
| Number of illumination LEDs | 4 |
| Energy consumption (1000 hours) | 4 kWh |
| Energy efficiency class (old) | A++ |

## FAQ

### How much does the Synergy21 Retrofit LED bulb 4W GX5.3 3000 K cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 100 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 29.07.2026 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: fitting/cap type, 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 Synergy21 Retrofit LED bulb 4W GX5.3 3000 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/12099209/67639098_large.webp