# Qoltec Pure Sine Wave Power Inverter 12V to 230V 4000W/8000W with UPS Bypass and USB

**URL:** https://aio.lv/en/product--qoltec-52699--12429034
**Data updated:** 2026-05-13 23:31 (EEST)
**Category:** Power Inverters
**Manufacturer:** QOLTEC
**Manufacturer code:** 52699
**EAN:** 5901878526997
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 585.99 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 484.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-52699--12429034

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Courier delivery to door | 07.07.2026 | 53.99 EUR |

## Summary description

The Qoltec pure sine wave power inverter converts 12V DC to 230V AC with a continuous power of 4000W and peak power of 8000W. Featuring UPS bypass functionality and a USB port, it is compatible with LiFePO4, GEL, and AGM batteries. This device ensures a stable power supply for sensitive electronics, making it ideal for off-grid systems, emergency power backup, and mobile energy solutions in various professional and domestic applications.

## Long description

The Qoltec Pure Sine Wave Power Inverter is a high-performance device designed to convert 12V DC battery power into stable 230V AC electricity. With a continuous power output of 4000W and a peak capacity of 8000W, this inverter provides reliable energy for demanding electrical appliances. It features an integrated UPS bypass function, ensuring seamless power transition during outages, and includes a USB port for convenient charging of mobile devices. The unit is engineered for compatibility with various battery types, including LiFePO4, GEL, and AGM, making it a versatile solution for diverse energy needs.
Advantages
This power inverter delivers a pure sine wave output, which is essential for the safe and efficient operation of sensitive electronic equipment such as laptops, medical devices, and precision tools. The inclusion of UPS bypass functionality allows the device to act as an emergency power supply, automatically switching to battery power when grid electricity fails. Its robust construction and compatibility with modern battery technologies like LiFePO4 ensure long-term reliability and efficiency in various operating conditions. The integrated USB port adds a layer of convenience for powering smaller electronics without needing additional adapters.
Suitable for
Off-grid solar power systems
Emergency backup power for homes and offices
Mobile energy solutions for campers and utility vehicles
Powering sensitive professional electronics
This device may not be suitable for applications requiring a continuous power draw exceeding 4000W or for systems operating on a 24V battery bank, as it is specifically designed for 12V input. It is also not intended for use in environments with high humidity or extreme temperatures that fall outside the manufacturer's specified operating range.
Key specifications
Input voltage: 12V DC
Output voltage: 230V AC
Continuous power: 4000W
Peak power: 8000W
Waveform: Pure sine wave
Battery compatibility: LiFePO4, GEL, AGM
Features: UPS bypass, USB port
To use the inverter, connect the input terminals securely to a compatible 12V battery bank using appropriate gauge cables to prevent voltage drop. Ensure the device is placed in a well-ventilated area to allow for proper heat dissipation during operation. Once connected, switch the unit on and plug your appliances into the AC output sockets. The UPS bypass function will automatically manage the power source transition if the primary grid input is connected and subsequently interrupted.
What to consider before purchase
Verify that your battery bank capacity is sufficient to support the 4000W load.
Ensure the input cables are of the correct thickness for the high current draw.
Check that the total power consumption of your devices does not exceed the continuous power rating.
Confirm the installation location provides adequate airflow.
Always ensure the inverter is switched off before connecting or disconnecting battery terminals to prevent sparking and potential damage to the internal circuitry.

## FAQ

### How much does the Qoltec Pure Sine Wave Power Inverter 12V to 230V 4000W/8000W cost, and is it available for purchase?

The price is 585.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 32 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 02.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Qoltec Pure Sine Wave Power Inverter 12V to 230V 4000W/8000W 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/12429034/68729193_large.webp