---
product_id: 101904645
title: "BESTEK Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter with 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black"
brand: "bestek"
price: "€ 79.20"
currency: EUR
in_stock: true
reviews_count: 10
category: "Bestek"
url: https://www.desertcart.pt/products/101904645-bestek-pure-sine-wave-power-inverter-300w-car-plug-in
store_origin: PT
region: Portugal
---

# 300W continuous pure sine wave power 2 AC outlets + 2 USB fast charge ports Smart fan & vent cooling system BESTEK Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter with 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black

**Brand:** bestek
**Price:** € 79.20
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your mobile lifestyle with clean, reliable energy on the go!

## Quick Answers

- **What is this?** BESTEK Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter with 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black by bestek
- **How much does it cost?** € 79.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/101904645-bestek-pure-sine-wave-power-inverter-300w-car-plug-in)

## Best For

- bestek enthusiasts

## Why This Product

- Trusted bestek brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pure Sine Wave Power:** Delivers clean, stable AC power safe for sensitive electronics like laptops and CPAP machines.
- • **Dual USB Fast Charging:** Smart USB ports auto-detect devices, delivering up to 4.8A total for rapid simultaneous charging.
- • **Eco-Friendly Certified:** Climate Pledge Friendly certified, made in a green factory using sustainable photovoltaic energy.
- • **Tesla-Compatible Voltage:** Upgraded 11-17V input supports Tesla & new energy vehicles without hassle.
- • **Comprehensive Safety Protections:** Built-in 40A fuse guards against overheating, overload, short circuits, and voltage spikes.

## Overview

The BESTEK 300W Pure Sine Wave Power Inverter converts your car’s 12V DC into stable 110V AC power with 2 AC outlets and 2 fast-charging USB ports. Designed for sensitive electronics, it features smart cooling, comprehensive safety protections, and compatibility with Tesla and other EVs. Climate Pledge Friendly certified, it’s the perfect compact power solution for professionals and travelers needing reliable, clean energy anywhere.

## Description

Buy BESTEK Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter with 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black: Power Inverters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good Product But Check Your Wattage - Works well and the fan is quiet. Before buying, you have to understand this particular product provides 300 watts total, not per outlet. However, you still have to calculate the total watts you plug is going to provide. A 20amp cigarette lighter plug in a 12 volt vehicle provides 240 watts total (20A x 12V = 240 watts). So check your vehicle manual fuse chart to verify the size fuse the cigarette lighter uses to calculate what you are getting out of the lighter. DO NOT increase the fuse size to meet your needs. If you needed all 300 watts, there are kits available to wire directly the battery.
Review: Power Inverter seamlessly transforming my car into a mobile power station - The BESTEK 300W Power Inverter is an absolute essential for life on the go, seamlessly transforming my car into a mobile power station. Its greatest strength is the pure sine wave output, which provides clean, stable power identical to a home wall outlet. This means I can confidently and safely charge sensitive electronics like my laptop, camera battery, and premium headphones without any risk of damage or the humming interference common with cheaper modified sine wave models. The convenience is unmatched. The unit plugs directly into the 12V socket, and the two AC outlets and two USB ports allow me to power multiple devices simultaneously during road trips or while working remotely from my vehicle. It has effortlessly handled everything from a small fan to charging a CPAP machine for a camping trip. Compact, reliable, and incredibly efficient, this BESTEK inverter delivers professional-grade performance in a user-friendly package. For anyone who needs trustworthy AC power away from home, this is an invaluable and highly recommended investment. It simply works perfectly.

## Features

- BESTEK 300W Pure Sine Inverter (Patent Number US D818,853 S): Designed for your devices that require careful protection, provide 300W continuous DC to AC power and 700W of peak power featuring 2 AC outlets and 2 USB charging ports, great for Christmas gift, charging string lights, laptop, speakers, camera, nebulizer, game console, kindle, iPad and other
- 2*AC and 2*USB Fast Charging Ports: Equipped with 2 Smart USB charging ports, which detects your devices automatically to deliver its fastest charge speed up to 2.4 amps per port/4.8 amps max, and you can charge most phones and tablets simultaneously
- Upgraded Version Compatible with Tesla: Bestek power inverter upgraded to 11-17V, Compatible with Tesla and other new energy vehicle. Unique vents and smart fan design make our 300W power inverter easier to dissipate heat, and cigarette lighter plug is easy to plug into a cigarette lighter socket
- Comprehensive Protection: Built-in 40 amps fuse and full protection against overheating, under and over voltage charging, short circuiting, overloads, and overcharging
- desertcart Climate Pledge Friendly: This product has been awarded the Climate Pledge Friendly (CPF) certification, produced in a green factory, using green photovoltaic energy throughout, practicing the concept of sustainable development, and being friendlier to the environment
- What You Get: 1*BESTEK 300W Pure Sine Power Inverter, 1*User Manual, 18-month warranty and customer service

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KQ4Q2L5 |
| Best Sellers Rank | #8,288 in Automotive ( See Top 100 in Automotive ) #23 in Power Inverters |
| Customer Reviews | 4.4 4.4 out of 5 stars (5,570) |
| Date First Available | September 21, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.4 pounds |
| Item model number | MRZ3011HU |
| Manufacturer | BESTEK |
| Product Dimensions | 8.1 x 5.3 x 2.6 inches |

## Product Details

- **Brand:** BESTEK
- **Model Name:** MRZ3011HU
- **Power Source:** DC Powered
- **Recommended Uses For Product:** Vehicle
- **Wattage:** 300 watts

## Images

![BESTEK Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter with 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black - Image 1](https://m.media-amazon.com/images/I/61nrT4ZCAML.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Can this unit support metrovac vacuum 120v - 60hz - 11.25amp?**
A: No, absolutely not. 120 volts at 11.25 amps is 1,350 watts, that's only 1,050 watts more than the 300 watts this unit is rated for.

**Q: how many amps can this handle safely for long periods of time? ( to anyone who knows or the seller) thank you!**
A: Rule of thumb for constant use and keeping things safe with as long as possible lifespan is about 66% of what it's designed for. This gives headroom to the voltage rails and tolerances. When electric components are used at their full capacity they heat up. So run at lower ratings to keep things cool without the fan having to overwork itself (which is just another potential failure point).

So for something rated at 300W I would try to keep continuous wattage at 200W. You're always going to have peaks and spikes, voltage drops and resistance, etc that will eat up the head room regardless so keeping continuous wattage usage lower at around 66% is ideal for pretty much all power supply needs including power amplifiers.

So whatever it is that you need to run constantly, take the continuous wattage and multiply it x1.5 and look for an inverter that has that continuous wattage rating to keep things longterm safe.

**Q: Does it automatically shut off if the battery drops bellow a voltage?**
A: The reason I am here today looking at reviews and deciding on a new inverter is because mine has stopped working after the battery dropped. I connected it to a different battery and it works for a couple of minutes and then 120V drops for a few seconds, in a repeating cycle. So my unit has failed after battery voltage ran out.

**Q: What is the length of the cord that plugs into the lighter outlet?**
A: Did the unit come WITH the cord, or do you have to purchase that separately?

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Product But Check Your Wattage
*by R***T on February 17, 2026*

Works well and the fan is quiet. Before buying, you have to understand this particular product provides 300 watts total, not per outlet. However, you still have to calculate the total watts you plug is going to provide. A 20amp cigarette lighter plug in a 12 volt vehicle provides 240 watts total (20A x 12V = 240 watts). So check your vehicle manual fuse chart to verify the size fuse the cigarette lighter uses to calculate what you are getting out of the lighter. DO NOT increase the fuse size to meet your needs. If you needed all 300 watts, there are kits available to wire directly the battery.

### ⭐⭐⭐⭐⭐ Power Inverter seamlessly transforming my car into a mobile power station
*by J***O on October 17, 2025*

The BESTEK 300W Power Inverter is an absolute essential for life on the go, seamlessly transforming my car into a mobile power station. Its greatest strength is the pure sine wave output, which provides clean, stable power identical to a home wall outlet. This means I can confidently and safely charge sensitive electronics like my laptop, camera battery, and premium headphones without any risk of damage or the humming interference common with cheaper modified sine wave models. The convenience is unmatched. The unit plugs directly into the 12V socket, and the two AC outlets and two USB ports allow me to power multiple devices simultaneously during road trips or while working remotely from my vehicle. It has effortlessly handled everything from a small fan to charging a CPAP machine for a camping trip. Compact, reliable, and incredibly efficient, this BESTEK inverter delivers professional-grade performance in a user-friendly package. For anyone who needs trustworthy AC power away from home, this is an invaluable and highly recommended investment. It simply works perfectly.

### ⭐⭐⭐⭐⭐ For my trailer
*by A***R on February 27, 2026*

It is quiet, works as discribed

## Frequently Bought Together

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-20*