# Inverter QOLTEC ECO Solar Boost 4kW MPPT LCD, 4 kW output, MPPT charge control, LCD display

**URL:** https://aio.lv/en/product--qoltec-53872--11002829
**Data updated:** 2026-03-07 18:12 (EET)
**Category:** Solar Panel Accessories
**Manufacturer:** QOLTEC
**Manufacturer code:** 53872
**EAN:** 5901878538723
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 220.49 €
**Prices and availability valid until:** 2026-07-06 23:59
**Price without VAT (21%):** 182.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-53872--11002829

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.06.2026 | free |
| Pickup points | 19.06.2026 | 1.99 EUR |
| Courier delivery to door | 19.06.2026 | 4.99 EUR |

## Summary description

Grid-tied inverter QOLTEC ECO Solar Boost 4kW MPPT LCD provides 4 kW AC output and integrates an MPPT solar charge controller with an LCD for system monitoring. Designed for small residential or commercial PV installations, it manages PV input, optimises panel power with MPPT, and supplies AC to loads or the grid. Practical for rooftop systems where conversion efficiency and basic status display are needed.

## Long description

The QOLTEC ECO Solar Boost 4kW MPPT LCD is a grid-tied inverter designed for small residential and light commercial photovoltaic (PV) systems. It converts DC power from solar panels into 4 kW of AC output and integrates an MPPT (Maximum Power Point Tracking) charge controller with an LCD display to monitor system status. The unit manages PV input, optimises panel output with MPPT algorithms, and supplies stable AC power to local loads or feeds excess energy to the grid, making it suitable for rooftop installations where reliable conversion and basic on-site monitoring are required.
Advantages
The integrated MPPT charge control improves energy yield by continuously tracking the maximum power point of the PV array, increasing overall system efficiency compared with fixed-point controllers. The built-in LCD provides immediate, readable information about operational status, input/output parameters and basic fault indications without additional monitoring equipment. With a 4 kW AC output rating the inverter supports typical single-phase household loads while maintaining compact installation footprint suitable for small installations.
Suitable for
 Small residential rooftop solar systems
 Light commercial PV installations (shops, offices)
 Retrofit projects replacing older inverters or controllers
 Projects requiring simple on-site monitoring and MPPT optimisation
Key specifications
 AC output power: 4 kW
 Integrated MPPT charge controller for PV input optimisation
 LCD display for system monitoring and status indicators
 Grid-tied operation for feeding excess energy to the utility grid
 Suitable for single-phase electrical systems
 Compact design for wall-mounted or small-box installations
How to use
Mount the inverter in a dry, ventilated location close to the main AC distribution panel and the PV array DC wiring. Connect the PV array to the inverter’s DC input following the polarity and voltage range guidelines from the manufacturer, and connect the inverter’s AC output to the building’s distribution panel in accordance with local electrical codes. Use the LCD display to navigate basic menus, read input/output voltages and currents, and check MPPT operating status. Commission the system by verifying grid connection settings and performing initial measurements to confirm proper operation.
Usage recommendations
Ensure PV array voltage and current remain within the inverter’s specified input ranges and protect DC and AC circuits with appropriate overcurrent devices and disconnects. Periodically inspect DC connections for tightness and signs of corrosion, and keep the LCD and ventilation openings free of dust. For grid connection and safety compliance use a qualified electrician and follow local regulations.

## FAQ

### How much does the Inverter QOLTEC ECO Solar Boost 4kW MPPT LCD cost, and is it available for purchase?

The price is 220.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 68 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 16.06.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Inverter QOLTEC ECO Solar Boost 4kW MPPT LCD be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 QOLTEC 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 QOLTEC 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/11002829/61648470_large.webp