# Power inverter QOLTEC Monolith 3000 MS Wave, 12V→230V, 1500/3000W, with USB

**URL:** https://aio.lv/en/product--qoltec-51927--10670603
**Data updated:** 2026-02-23 13:20 (EET)
**Category:** Power Inverters
**Manufacturer:** QOLTEC
**Manufacturer code:** 51927
**EAN:** 5901878519272
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 83.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 69.00 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-51927--10670603

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

QOLTEC Monolith 3000 MS Wave is a 12V to 230V power inverter delivering 1500W continuous and 3000W peak output. It converts DC vehicle or battery power to AC mains for powering appliances and tools, and includes USB output for charging mobile devices. Suitable for caravans, boats, mobile workshops and emergency backup where stable AC supply is required.

## Long description

QOLTEC Monolith 3000 MS Wave is a 12V to 230V power inverter that provides 1500W continuous output and 3000W peak power for short surges. It converts DC from a vehicle battery or standalone battery bank into a stable AC mains supply suitable for running household appliances, power tools and electronic devices. The unit includes a USB port for direct charging of mobile devices and offers sine wave output intended to reduce interference with sensitive electronics.
Advantages
The inverter delivers a high continuous power rating of 1500W with a 3000W surge capacity to handle start-up currents of motors and compressors. Its pure/multistage sine wave output provides improved compatibility with audio equipment, computers and precision electronics compared with modified sine designs. The integrated USB port allows convenient charging of phones and tablets without requiring an additional adapter. Designed for vehicle and off-grid use, the device supports safe conversion of 12V DC to 230V AC with built-in protections against overload, short circuit and thermal conditions.
Suitable for
Powering small appliances and electric tools in a caravan, camper or motorhome
Supplying AC power for equipment on boats and yachts
Running power tools and chargers at mobile workshops or work sites
Emergency backup power for home electronics and lighting
Charging smartphones, tablets and USB devices while traveling
Key specifications
Input voltage: 12 V DC
Output voltage: 230 V AC
Continuous power: 1500 W
Peak (surge) power: 3000 W
Output waveform: MS / sine-type output suitable for sensitive electronics
USB output: built-in USB port for charging mobile devices
Protections: overload, short circuit and thermal protection
Typical applications: caravans, boats, mobile workshops, emergency power
How to use
Connect the inverter to a 12V battery using appropriate cables and terminals, ensuring correct polarity. Place the inverter on a flat, ventilated surface and keep it clear of flammable materials. Switch the unit on and then connect 230V appliances to the AC outlets; use the USB port to charge mobile devices directly. Monitor the inverter for indicator lights or fault signals and avoid drawing continuous loads above the rated 1500W. For high-startup loads, verify that the battery and cabling can supply the necessary surge current for short durations.
Usage recommendations
Use battery cables of sufficient gauge and secure connections to minimize voltage drop and heating. Allow airflow around the inverter and avoid enclosed or high-temperature environments. For protection of connected equipment, connect sensitive devices to the inverter when it is switched on and verify compatibility of inductive loads such as compressors or motors with the inverter's surge rating. Regularly check battery state and charging system to ensure reliable operation during mobile or emergency use.

## FAQ

### How much does the QOLTEC Monolith 3000 MS Wave power inverter cost, and is it available for purchase?

The price is 83.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 01.07.2026 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 Monolith 3000 MS Wave power inverter 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/10670603/67586150_large.webp