---
product_id: 101904645
title: "Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black"
brand: "bestek"
price: "$107.80"
currency: USD
in_stock: true
reviews_count: 13
category: "Bestek"
url: https://www.desertcart.us/products/101904645-pure-sine-wave-power-inverter-300w-car-plug-in-charger
store_origin: US
region: United States of America
---

# 300W continuous pure sine wave power 2 AC + 2 USB fast charging ports (4.8A max) Smart fan & vents for efficient heat dissipation Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black

**Brand:** bestek
**Price:** $107.80
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black by bestek
- **How much does it cost?** $107.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/101904645-pure-sine-wave-power-inverter-300w-car-plug-in-charger)

## 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

- • **Dual AC & USB Ports:** Charge multiple devices simultaneously with 2 AC outlets plus 2 smart USB ports up to 4.8A total.
- • **Comprehensive Safety:** Built-in 40A fuse and protections against overheating, over/under voltage, short circuits, and overloads.
- • **Pure Sine Wave Power:** Delivers clean, stable AC power safe for sensitive electronics like laptops and CPAP machines.
- • **Eco-Friendly Certified:** Climate Pledge Friendly product made in a green factory using sustainable photovoltaic energy.
- • **Tesla-Compatible Upgrade:** Works seamlessly with Tesla and other EVs (11-17V input range) for next-gen mobile power.

## 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 USB ports, ideal for charging laptops, phones, CPAP machines, and more. Featuring smart cooling, comprehensive safety protections, and Tesla compatibility, it’s a compact, eco-certified solution for professionals needing dependable mobile power.

## Description

Product description BESTEK Power Inverter Options for You 300W Pure Sine Inverter 150W Power Inverter 300W Power Inverter 300W Power Inverter PD 400W Pure Sine Inverter 500W Pure Sine Inverter 1000W Pure Sine Inverter

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: Good enough - It performed well enough for a 6-hour drive with the Dell laptop fully in use and plugged in.

## 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
- 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 |
| Antenna Location | Vehicle |
| Best Sellers Rank | #4,290 in Automotive ( See Top 100 in Automotive ) #13 in Power Inverters |
| Brand | BESTEK |
| Built-In Media | 300W Power Inverter User Manual |
| Color | Black |
| Customer Reviews | 4.5 out of 5 stars 5,599 Reviews |
| Electrical Output Waveform | Pure Sine Wave |
| Energy Specifications Met | ETL, RoHS, FCC |
| Frequency | 60 Hz |
| Input Voltage | 12 Volts |
| Inverter Capacity Volt-Amp | 462 |
| Item Dimensions L x W x H | 8.1"L x 5.3"W x 2.6"H |
| Item Weight | 1.4 Pounds |
| Manufacturer | BESTEK |
| Mfr Part Number | MRZ3011HU |
| Model Name | MRZ3011HU |
| Model Number | MRZ3011HU |
| Number of Outlets | 4 |
| Output Power | 300 Watts |
| Output Voltage | 120 Volts |
| Peak Output Power Watts | 700 |
| Power Source | DC Powered |
| Recommended Uses For Product | Vehicle |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |
| Wattage | 300 watts |

## Product Details

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

## Images

![Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black - Image 1](https://m.media-amazon.com/images/I/61nrT4ZCAML.jpg)
![Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black - Image 2](https://m.media-amazon.com/images/I/71UWOpYRLcL.jpg)
![Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black - Image 3](https://m.media-amazon.com/images/I/71EouFbj3kL.jpg)
![Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black - Image 4](https://m.media-amazon.com/images/I/81qWfxdNr3L.jpg)
![Pure Sine Wave Power Inverter - 300W Car Plug in Charger Outlet DC 12V to 110V AC - Cigarette Lighter Adapter 4.8A Dual USB Fast Charging Ports for Phone, Laptop, CPAP - Black - Image 5](https://m.media-amazon.com/images/I/81qL0j85j8L.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.

### ⭐⭐⭐⭐⭐ Good enough
*by O***N on April 18, 2026*

It performed well enough for a 6-hour drive with the Dell laptop fully in use and plugged in.

### ⭐⭐⭐⭐⭐ Sine wave is the best for sensitive electronics.
*by R***R on May 7, 2026*

Works great. Great for low power devices.

## Frequently Bought Together

- BESTEK 300Watt Pure Sine Wave Power Inverter Car Adapter DC 12V to AC 110V with 4.2A Dual Smart USB Ports
- Goupchn SAE Power Socket Sidewall Port 2 Pack Weatherproof SAE Quick Connect Solar Panel Flush Mount Connector 2 Pin 12AWG with 8 Screws for Solar Generator Battery Charger
- 10 Gauge Fuse Holder - 10 AWG Inline Fuse Holder with 40 AMP ATC Blade Fuses (4pack)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/101904645-pure-sine-wave-power-inverter-300w-car-plug-in-charger](https://www.desertcart.us/products/101904645-pure-sine-wave-power-inverter-300w-car-plug-in-charger)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-17*